Diego Costa quite rightly got a lot of stick for his clash with Gabriel on Saturday, but no one could ever say that he didn't have a motive.
The two players have past history having tangled while playing in La Liga. This clip from a match between Costa's Atletico Madrid side and Gabriel's Villarreal shows a moment of play-acting from the Arsenal defender that has to be seen to be believed.
As you'll see from the video, Costa gives a little shove with his shoulder and Gabriel makes the very most of it, collapsing on the floor as if he'd just been sucker-punched by Anthony Joshua. Watch below.