Bruno Fernandes slammed Real Sociedad's time-wasting during their defeat to Manchester United and said referee Georgi Kabakov failed to get a grip with the delaying tactics.
United won 1-0 at the Anoeta Stadium but it wasn't enough to leapfrog the La Liga side and finish top of the Europa League group.
Top spot comes with a greater reward this season, with Real Sociedad now progressing directly to the last-16 in March, while United face a February play-off against a third-place finisher from the Champions League, which includes Barcelona and Juventus.