After an emphatic start to the 2009/2010 campaign, Arsenal are set to be without their fearless leader and main midfielding man, Cesc Fabregas, for two big, vital clashes.



The Spaniard picked up a knock in the 4-1 thumping of Portsmouth last weekend and could to be sidelined for up to two weeks, this will mean missing Arsenal's Champions League encounter with Celtic and the Gunners' big match with rival and EPL Champions, Manchester United.

Both are must-win matches for the North London side, especially the clash with United as it could determine whether or not Arsenal are serious title contenders. If Fabregas is unable to play, could French midfield Abou Diaby could be the key replacement.

After bagging to impressive goals in Arsenal's 4-1 domination of Pompey, Wenger has hinted that Diaby has all the traits to be the next Patrick Vieira. Diaby, who has struggled with injury ever since joining the Gunners in 2006, is high in confidence and can create play similar to Cesc.

The 23-year-old is blessed with strong, long legs which move quickly, confusing even the best of defenders. The French international also has great pace and strength plus a fierce shot. Although his passing is not as exquisite as the captain's, Diaby is a great attacking threat.

The encounter with Manchester is likely to come down to who has the better attack, and if Diaby can perform, Arsenal are sure to shine.