Table-topping Chelsea travel to Ewood Park to take on Blackburn Rovers with a five-point cushion at the top of the Premier League.

Chelsea manager Carlo Ancelotti has warned his players that they will have to stop taking their foot off the accelerator during games if they are to retain their Barclays Premier League crown.

Current odds: Chelsea are 2/5, while Rovers are out at 6/1. A draw is priced at 3/1. Who are you backing this afternoon, and what is your predicted score? Post your views below...

TEAM NEWS: Christopher Samba and Ryan Nelsen are set to return to the centre of the Blackburn. Samba will come back in to the side after missing last weekend's defeat to Liverpool at Anfield through suspension. Nelsen, who has been missing with a thigh injury, trained with the squad yesterday and will return provided he suffers no adverse reaction. Jason Roberts is also back in full training, but midfielders Steven Nzonzi and Vince Grella are out with hamstring and groin injuries respectively.

Chelsea will once again be without Frank Lampard for the match. It had been hoped Lampard would return to training this week after missing the last 10 games but the England midfielder will instead step up his rehabilitation from a hernia injury next week with a view to him playing some part in next weekend's match at Liverpool. Alex will start after missing last week's win over Wolves with a thigh injury but Ramires (ankle) and Yossi Benayoun (Achilles) remain sidelined.

The Blues have a five-point lead over second-placed Manchester City, while Rovers are currenlty sitting in 17th spot with nine points on the board.