Last updated : 14 December 2006 By Ed

John Terry believes that Chelsea can raise their game in the second half of the season whereas United probably can't.

"Manchester United are probably playing the best football they can play at the moment. They've had very few injuries so far," he said.

"Whereas we know as a team we've got another level to go to. We need to take the game to teams and then no-one can live with us. We must go on a run of games and keep winning.

"We must keep the pressure up. Christmas is a difficult period and United have got tough games.

"We must just keep winning and keep on like we know we're capable of."