Sir Alex Ferguson has identified Chelsea as the real danger to the chances of Manchester United recording a fourth straight Premier League title.
United currently sit two points behind their West London rivals after an impressive win over Wigan.
This season has seen the Premier League become more competitive then ever; United have suffered five defeats, Chelsea have gone seven games without a win and the other two traditional big four teams Arsenal and Liverpool have had up-and-down seasons to date.
Sir Alex has said that even before the season, he identified Chelsea as their prime candidates to threaten United's recent dominance at the top of the Premier League and what he has seen to date has done nothing to change his mind.
"Nobody has had a consistent run really and although it is not looking like it at the moment, history tells you that two teams break away at the end," said Ferguson.
"Chelsea are the big danger because they too have great experience."
United have given their Dutch goalkeeper a period of indefinite compassionate leave as his wife suffered a brain haemorrhage just before Christmas.
The absence of the experienced man sees Tomasz Kuszczak and Ben Foster left to battle to keep net in United's upcoming games that could shape their Premier League title aspirations.