It was in the round of 16 of the Champions League that Ibrahimovic got into a hard duel with Chelsea midfielder Oscar. Far too hard, said referee Kuipers, and sent off the Paris SG striker.
Ibrahimovic himself was very unhappy with the decision and wrote on his app that "the verdict is not acceptable".
Eleven years later, the former top referee admits his mistake, writes Voetbal Primeur.
"I already knew then that I would have to carry the cross, because I had sent off one of the top players," says Kuipers.
Despite the sending-off, Paris won the tie and advanced to the quarterfinals.
