Louis Saha believes Manchester United's squad strength will help them through the remainder of the tough festive period.
Whilst the other teams, including Chelsea and Arsenal, have finally started to falter, United are still flying high.
Even with Carlos Tevez and Patrice Evra on the bench, and Edwin van der Sar and Owen Hargreaves out injured, United still have plenty of top quality players to choose from and proved it as they eased past Sunderland with a 4-0 win on Boxing Day, with Saha scoring his first two Premier League goals since September at the Stadium of Light to fire United back to the top of the table.
"The squad we have is amazing," said Saha.
"It is strong in every position. A few players did not even travel on Wednesday and we still have Paul Scholes and Gary Neville to come back.
"We are all aware this is a difficult period. Any team who has not got the right squad will struggle during that time because fitness-wise, it is very hard.
"Mentally, you have to be very strong to get through it. That is why the manager has been very clever."
United will look to maintain their unbeaten run in December when they take on West Ham at Upton Park on Saturday.
The Hammers have proved tough opponents for the Red Devils in recent years, claiming the double over United last year despite their poor campaign.
Whilst the Hammers are bound to be tough opponents, Saha is confident their recent rich vein of form will help them going into the match.
"Every game in the Premier League is difficult but West Ham especially so," he said.
"It has been very hard for us on a couple of occasions down there. But we have every reason to be confident after the results we have had and that is what we have to do on Saturday."