BLUES striker Blair Sturrock has stepped up his rehabilitation work on a troublesome ankle injury.

The forward picked up the problem against Wycombe Wanderers following a challenge from his own team-mate Bilel Mohsni on the final day of last season.

Sturrock has yet to figure during his side’s pre-season friendlies but he has now returned to straight line running.

However, it still remains unclear when he will be able to play again.