That was so close, I don't blame the AR, and if in doubt, go with the attacker, so I have no problem with the goal....may have scored in the last 10 Premier League games played by his team, but he was offside for last night's goal.
The helpful graphic used by MotD clearly showed half of his upper body in an offside position when the ball was played to him. Then AS pronounced that he wasn't offside. Thanks for that.
Costa wears the angry expression of a man who has the face of a 45 year old angry man