Video: Vito Mannone forgets one of the key benefits of being a goalkeeper (Olympiakos 3-1 Arsenal)

That being the fact that you're allowed to handle the ball inside the penalty area. Rather than catch David Fuster's time effort for Olympiakos last night, Arsenal's sub keeper Mannone on in place of the injured Lukasz Fabianski decided to attempt some sort of martial arts volleyed clearance. That plan didn't really work.