diff --git a/app/controllers/tournaments_controller.rb b/app/controllers/tournaments_controller.rb
index 9fa7f18..e62ae40 100644
--- a/app/controllers/tournaments_controller.rb
+++ b/app/controllers/tournaments_controller.rb
@@ -39,6 +39,8 @@ class TournamentsController < ApplicationController
     if group_stage
       params.require(:playoff_teams_amount)
       groups = organize_teams_in_groups(teams)
+      # associate provided teams with tournament
+      tournament.teams = groups.flatten
       # add groups to tournament
       result = AddGroupStageToTournamentAndSave.call(tournament: tournament, groups: groups)
     else
diff --git a/spec/controllers/tournaments_controller_spec.rb b/spec/controllers/tournaments_controller_spec.rb
index 06e05dc..cb1ef87 100644
--- a/spec/controllers/tournaments_controller_spec.rb
+++ b/spec/controllers/tournaments_controller_spec.rb
@@ -195,6 +195,10 @@ RSpec.describe TournamentsController, type: :controller do
               .to eq(create_group_tournament_data[:playoff_teams_amount])
           end
 
+          it 'associates the given teams with the created tournament' do
+            expect(@group_stage_tournament.teams).to match_array(@teams16)
+          end
+
           context 'playoff_teams_amount unacceptable' do
             shared_examples_for 'wrong playoff_teams_amount' do
               it 'fails' do