diff --git a/apps/participation/forms.py b/apps/participation/forms.py
index 47256bd..d43a073 100644
--- a/apps/participation/forms.py
+++ b/apps/participation/forms.py
@@ -115,6 +115,35 @@ class ReceiveParticipationForm(forms.ModelForm):
         fields = ('received_participation',)
 
 
+class SendParticipationForm(forms.ModelForm):
+    """
+    Update the sent participation of a participation.
+    """
+    sent_participation = forms.ModelChoiceField(
+        queryset=Participation.objects,
+        label=lambda: _("Send to team"),
+    )
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields["sent_participation"].initial = self.instance.sent_participation
+        self.fields["sent_participation"].queryset = Participation.objects.filter(
+            ~Q(pk=self.instance.pk) & Q(problem=self.instance.problem, valid=True)
+        )
+
+    def clean(self, commit=True):
+        cleaned_data = super().clean()
+        participation = cleaned_data["sent_participation"]
+        participation.received_participation = self.instance
+        self.instance = participation
+        return cleaned_data
+
+
+    class Meta:
+        model = Participation
+        fields = ('sent_participation',)
+
+
 class PhaseForm(forms.ModelForm):
     """
     Form to update the calendar of a phase.
diff --git a/apps/participation/templates/participation/participation_detail.html b/apps/participation/templates/participation/participation_detail.html
index bef3de4..878292b 100644
--- a/apps/participation/templates/participation/participation_detail.html
+++ b/apps/participation/templates/participation/participation_detail.html
@@ -50,7 +50,7 @@
                         <dd class="col-md-5">{{ participation.sent_participation.team|default:any }}</dd>
                         {% if user.registration.is_admin %}
                             <dd class="col-xs-2">
-                                <button class="btn btn-primary">{% trans "Change" %}</button>
+                                <button class="btn btn-primary" data-toggle="modal" data-target="#defineSentParticipationModal">{% trans "Change" %}</button>
                             </dd>
                         {% endif %}
                     </dl>
@@ -125,6 +125,11 @@
     {% trans "Update" as modal_button %}
     {% url "participation:participation_receive_participation" pk=participation.pk as modal_action %}
     {% include "base_modal.html" with modal_id="defineReceivedParticipation" %}
+
+    {% trans "Define team that receives your video" as modal_title %}
+    {% trans "Update" as modal_button %}
+    {% url "participation:participation_send_participation" pk=participation.pk as modal_action %}
+    {% include "base_modal.html" with modal_id="defineSentParticipation" %}
 {% endif %}
 
 {% trans "Upload video" as modal_title %}
@@ -145,6 +150,11 @@
                 if (!modalBody.html().trim())
                     modalBody.load("{% url "participation:participation_receive_participation" pk=participation.pk %} #form-content");
             });
+            $('button[data-target="#defineSentParticipationModal"]').click(function() {
+                let modalBody = $("#defineSentParticipationModal div.modal-body");
+                if (!modalBody.html().trim())
+                    modalBody.load("{% url "participation:participation_send_participation" pk=participation.pk %} #form-content");
+            });
             {% endif %}
             $('button[data-target="#uploadSolutionModal"]').click(function() {
                 let modalBody = $("#uploadSolutionModal div.modal-body");
diff --git a/apps/participation/templates/participation/send_participation_form.html b/apps/participation/templates/participation/send_participation_form.html
new file mode 100644
index 0000000..a5bb901
--- /dev/null
+++ b/apps/participation/templates/participation/send_participation_form.html
@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% load crispy_forms_filters i18n %}
+
+{% block content %}
+    <form method="post">
+        <div id="form-content">
+            {% csrf_token %}
+            {{ form|crispy }}
+        </div>
+        <button class="btn btn-primary" type="submit">{% trans "Update" %}</button>
+    </form>
+{% endblock content %}
+
diff --git a/apps/participation/urls.py b/apps/participation/urls.py
index a241c97..f2fbf6f 100644
--- a/apps/participation/urls.py
+++ b/apps/participation/urls.py
@@ -2,8 +2,9 @@ from django.urls import path
 from django.views.generic import TemplateView
 
 from .views import CalendarView, CreateTeamView, JoinTeamView, MyParticipationDetailView, MyTeamDetailView, \
-    ParticipationDetailView, PhaseUpdateView, SetParticipationReceiveParticipationView, TeamAuthorizationsView, \
-    TeamDetailView, TeamLeaveView, TeamUpdateView, UploadVideoView
+    ParticipationDetailView, PhaseUpdateView, SetParticipationReceiveParticipationView, \
+    SetParticipationSendParticipationView, TeamAuthorizationsView, TeamDetailView, TeamLeaveView, TeamUpdateView, \
+    UploadVideoView
 
 
 app_name = "participation"
@@ -21,6 +22,8 @@ urlpatterns = [
     path("detail/upload-video/<int:pk>/", UploadVideoView.as_view(), name="upload_video"),
     path("detail/<int:pk>/receive-participation/", SetParticipationReceiveParticipationView.as_view(),
          name="participation_receive_participation"),
+    path("detail/<int:pk>/send-participation/", SetParticipationSendParticipationView.as_view(),
+         name="participation_send_participation"),
     path("calendar/", CalendarView.as_view(), name="calendar"),
     path("calendar/<int:pk>/", PhaseUpdateView.as_view(), name="update_phase"),
     path("chat/", TemplateView.as_view(template_name="participation/chat.html"), name="chat")
diff --git a/apps/participation/views.py b/apps/participation/views.py
index d32c3d4..8b5abf1 100644
--- a/apps/participation/views.py
+++ b/apps/participation/views.py
@@ -20,8 +20,8 @@ from django_tables2 import SingleTableView
 from magic import Magic
 from registration.models import AdminRegistration
 
-from .forms import JoinTeamForm, ParticipationForm, PhaseForm, ReceiveParticipationForm, RequestValidationForm,\
-    TeamForm, UploadVideoForm, ValidateParticipationForm
+from .forms import JoinTeamForm, ParticipationForm, PhaseForm, ReceiveParticipationForm, RequestValidationForm, \
+    SendParticipationForm, TeamForm, UploadVideoForm, ValidateParticipationForm
 from .models import Participation, Phase, Team, Video
 from .tables import CalendarTable
 
@@ -370,6 +370,18 @@ class SetParticipationReceiveParticipationView(AdminMixin, UpdateView):
         return reverse_lazy("participation:participation_detail", args=(self.object.pk,))
 
 
+class SetParticipationSendParticipationView(AdminMixin, UpdateView):
+    """
+    Define the team where the solution will be sent.
+    """
+    model = Participation
+    form_class = SendParticipationForm
+    template_name = "participation/send_participation_form.html"
+
+    def get_success_url(self):
+        return reverse_lazy("participation:participation_detail", args=(self.object.pk,))
+
+
 class UploadVideoView(LoginRequiredMixin, UpdateView):
     """
     Upload a solution video for a team.
diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index 53c29a3..c6f385c 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Corres2math\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-10-31 12:36+0100\n"
+"POT-Creation-Date: 2020-10-31 13:32+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Yohann D'ANELLO <yohann.danello@animath.fr>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -99,35 +99,39 @@ msgstr "changelogs"
 msgid "Changelog of type \"{action}\" for model {model} at {timestamp}"
 msgstr "Changelog de type \"{action}\" pour le modèle {model} le {timestamp}"
 
-#: apps/participation/forms.py:19 apps/participation/models.py:33
+#: apps/participation/forms.py:20 apps/participation/models.py:33
 msgid "The trigram must be composed of three uppercase letters."
 msgstr "Le trigramme doit être composé de trois lettres majuscules."
 
-#: apps/participation/forms.py:34
+#: apps/participation/forms.py:35
 msgid "No team was found with this access code."
 msgstr "Aucune équipe n'a été trouvée avec ce code d'accès."
 
-#: apps/participation/forms.py:68
+#: apps/participation/forms.py:69
 msgid "I engage myself to participate to the whole \"Correspondances\"."
 msgstr "Je m'engage à participer à l'intégralité des Correspondances."
 
-#: apps/participation/forms.py:83
+#: apps/participation/forms.py:84
 msgid "Message to address to the team:"
 msgstr "Message à adresser à l'équipe :"
 
-#: apps/participation/forms.py:98
+#: apps/participation/forms.py:99
 msgid "You can't upload your video after the deadline."
 msgstr "Vous ne pouvez pas envoyer de vidéo après la date limite."
 
-#: apps/participation/forms.py:127
+#: apps/participation/forms.py:124
+msgid "Send to team"
+msgstr "Envoyer à l'équipe"
+
+#: apps/participation/forms.py:162
 msgid "Start date must be before the end date."
 msgstr "La date de début doit être avant la date de fin."
 
-#: apps/participation/forms.py:129
+#: apps/participation/forms.py:164
 msgid "This phase must start after the previous phases."
 msgstr "Cette phase doit commencer après les phases précédentes."
 
-#: apps/participation/forms.py:131
+#: apps/participation/forms.py:166
 msgid "This phase must end after the next phases."
 msgstr "Cette phase doit finir avant les phases suivantes."
 
@@ -312,7 +316,7 @@ msgid "Proposed solution:"
 msgstr "Solution proposée :"
 
 #: apps/participation/templates/participation/participation_detail.html:27
-#: apps/participation/templates/participation/participation_detail.html:131
+#: apps/participation/templates/participation/participation_detail.html:136
 #: apps/participation/templates/participation/upload_video.html:11
 #: apps/registration/templates/registration/upload_photo_authorization.html:18
 #: apps/registration/templates/registration/user_detail.html:78
@@ -397,9 +401,11 @@ msgid "Define received video"
 msgstr "Définir la vidéo reçue"
 
 #: apps/participation/templates/participation/participation_detail.html:125
+#: apps/participation/templates/participation/participation_detail.html:130
 #: apps/participation/templates/participation/phase_form.html:11
 #: apps/participation/templates/participation/phase_list.html:18
 #: apps/participation/templates/participation/receive_participation_form.html:11
+#: apps/participation/templates/participation/send_participation_form.html:11
 #: apps/participation/templates/participation/team_detail.html:64
 #: apps/participation/templates/participation/team_detail.html:123
 #: apps/participation/templates/participation/update_team.html:12
@@ -409,15 +415,19 @@ msgstr "Définir la vidéo reçue"
 msgid "Update"
 msgstr "Modifier"
 
-#: apps/participation/templates/participation/participation_detail.html:130
+#: apps/participation/templates/participation/participation_detail.html:129
+msgid "Define team that receives your video"
+msgstr "Définir l'équipe qui recevra votre vidéo"
+
+#: apps/participation/templates/participation/participation_detail.html:135
 msgid "Upload video"
 msgstr "Envoyer la vidéo"
 
-#: apps/participation/templates/participation/participation_detail.html:134
+#: apps/participation/templates/participation/participation_detail.html:139
 msgid "Display solution"
 msgstr "Afficher la solution"
 
-#: apps/participation/templates/participation/participation_detail.html:135
+#: apps/participation/templates/participation/participation_detail.html:140
 msgid "This video platform is not supported yet."
 msgstr "La plateforme de cette vidéo n'est pas encore supportée."