England have admitted that they are worried by an injury to key all-rounder Craig White prior to Thursday's Lord's Test against Pakistan.

White was forced to sit out part of the England team's training session with a stiff back.

"We'll be monitoring it overnight and see how he is in the morning," confirmed physiotherapist Dean Conway. "It's something that has bothered him for the last few days and he struggled a bit to get through his bowling."

Certainly the loss of White would be a big blow to the England team. His all-round skills provide crucial balance to the side and he is expected to play a prominent role throughout the summer.

Alex Tudor is a possible replacement if White is deemed unfit tomorrow, though with Dominic Cork already included in the squad as an all-rounder, England may decide to play both new call-ups: Ian Ward and Ryan Sidebottom.

© CricInfo