"It's a shame for Diaby because he had a great first half. Sometimes you could understand when he has a bad game, but he had an outstanding game.
"I explain that by the fact that he has been injured so many times from bad tackles that he lost a bit quickly his nerves because this boy has been out for a long time and many times.
"Certainly the tackle provoked his reaction.
"Mathematically, two points; psychologically, the damage is a bit bigger tonight because everybody is, of course, very, very disappointed in the dressing room.