Former Chelsea midfielder Gus Poyet says their clash with Manchester City tomorrow is their biggest of the season.

Poyet reckons his former side's match against Man City this weekend is the most important game of their season.

Poyet told BettingExpert: "Game of the season for Chelsea. Massive game."

"This game is really important for Chelsea. It will define whether they will be challenging or not. I think losing this game will be terrible for Chelsea so I hope they go there and put a great performance.

"What a month, you know. Sometimes you think you're doing well and when you look ahead, you say 'we're playing Tottenham three times in the same month, we're playing Liverpool at home and Man City away.' It is a month that defines your season practically.

"Probably if Chelsea lose against Manchester City, Chelsea could be out of the race. I know that in football everything can happen, but it will become really difficult. We are talking about winning all the rest of the games, like 15 in a row. It can happen like it has happened before. But it's a massive game this weekend."