Manchester United are sweating on a knee scan for Mikael Silvestre after he broke down early into yesterday's win at Everton.

"It's a knee injury," confirmed boss Sir Alex Ferguson after the match. "We'll send him for a scan and wait to see what comes of it."

Silvestre joins Darren Fletcher and John O'Shea on the sidelines, all of whom are expected to be out for a number of weeks at least.