AC Milan goalkeeper Christian Abbiati admits he learned a new law of the game during their Champions League win over Celtic.

He gave away an indirect free-kick inside his penalty area for picking the ball up after having already handled.

"I have been doing that for 20 years, so I never knew it was a foul. How many times does someone save a shot, then pick it up on the rebound? I didn't see it as a 'control' of the ball, but oh well..." the goalkeeper told Sky Sport Italia.

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