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Arsenal's Vito Mannone will have to show dominance in the box
With Arsenal's No. 1 Wojciech Szczesny still missing through injury, Italian stopper Vito Mannone will continue to deputise between the sticks.
While Mannone is undoubtedly an accomplished shot-stopper, there have been questions over the young goalkeeper's ability to deal with crosses effectively. Mannone's decision- making has not been the best at times this season and with the direct style likely to be employed by West Ham, a more solid performance from the Italian when dealing with high balls into the box is a must.
West Ham will be well aware of this potential frailty and don't be surprised to see Allardyce put a man on Mannone for corners and free kicks to try and unsettle Arsenal's young goalkeeper. If Mannone proves unable to deal with this pressure, Arsenal could be subject to an upset.
I've set out what I think will be the key areas in Arsenal's match against West Ham this Saturday, but what do you think? Will Arsenal walk away victorious, or will West Ham give the Gunners more than they bargained for? Let me know in the comments.