The winner of the clash between Manchester United and Chelsea at the Old Trafford will be really close to the crown of the Premier League. Arsenal, who remains in the third place and battle Wolverhampton, hope to take advantage of an eventual tie.
Ferguson's team is only one point over Ancelotti's Chelsea, and there are only six games left for each club. These ingredients make this derby a decisive one.
Wayne Rooney will be out of this tremendous match because of an injury suffered in the last game against Bayern Munich for the Champions League.
However, United's statistics without Rooney are extremly good too: in 11 games without him, the Red Devils got 10 wins and one tie.
In the other side, Chelsea - recently eliminated from the Champions League - had enough time to recover his most important player: Didier Drogba healed a knee injury and will be in the starting team.