Diego Costa's reaction to a late tackle from Gareth Barry caused quite a stir online, with the Spain international accused of biting the Blues midfielder - over to Twitter we go..
Controversial striker Diego Costa appeared to attempt to bite Gareth Barry in Chelsea's 2-0 defeat to Everton in the FA Cup.
Replay footage showed the Spain international nuzzle the Toffees midfielder as the pair came together following a poor tackle from Barry, with the Chelsea man shown a second yellow card after their clash.
From bemusement to outrage - and everything in between - Goal
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- Goal**