Troy Deeney was shown a red card just 11 minutes into Watford's Premier League encounter with Arsenal at Vicarage Road.
The Hornets striker appeared to elbow Gunners midfielder Lucas Torreira as he made a cross-field pass.
The 30-year-old was instantly shown a red card by referee Craig Pawson, much to the bemusement of the home crowd.
Deeney eventually agreed to leave the field after remonstrating with Pawson and questioning Torreira's role in the incident.
The former Walsall man pulled off his shirt in disgust and flung his captain's armband towards a team-mate before making his way to the tunnel.
Deeney was dismissed just one minute after Pierre-Emerick Aubameyang had given the visitors the lead, charging down Ben Foster's hesitant clearance.
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Arsenal
Watford
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languid
67
He does it on purpose and deserves the red
Flaw
53
Im not surprised He is used to it I dont see any talent He once said that when he plays with Arsenal 'let me whack the first one nd see who wants it' Here now a Red Card Karma
Yascmou
51
he will regret this one
Danoni85
41
If players sometimes know what will happen during a game, they won't make some comments before the game.....Cojones issues still haunting him