With Manchester United hogging headlines recently with their young squad, it was inevitable that attention was drawn to the London side's aging squad.
However, Sir Alex believes that the situation at Stamford Bridge is not as bad as perceived, and that the Chelsea squad's experience may be to their advantage instead.
He told Inside United: "hey have tremendous experience with the likes of Frank Lampard, Didier Drogba, Petr Cech, John Terry, Alex, Nicolas Anelka and Fernando Torres,"
"But they don't have 36 or 37-year-olds like Ryan Giggs! Lampard and Drogba are 33, Anelka is 32 - not dissimilar to Carrick and Ferdinand, and we wouldn't be saying they are dead and buried, would we? So why should they? They'll still be a big threat and we expect them to challenge.
"We look at City and Chelsea as the main challengers and, if we finish above those two, we'll hopefully win the league."
Sir Alex also praised the performance of Anderson, who is starting to show his the promise that prompted his signing from Porto in 2007.
He added: "He's been tremendous, the boy,
"He's had a couple of long-term injuries which haven't helped him, but in the last year or so, he's steered clear of injury.
"That means he's training every day so his fitness levels are much better. And he's maturing so you can see the consistency in his game."
Manchester United will resume their defence of the Premier League title this Saturday against Bolton at the Reebok Stadium.