TOM LAWRENCE is a major injury doubt ahead of this weekend's Old Firm derby, according to reports.

The former Derby County man picked up a knee injury last weekend against Ross County and has not recovered fully.

The Sun now say that the winger is set to miss Saturday's trip to Celtic Park in the Scottish Premiership.

Confirmation will likely come later today with manager Giovanni van Bronckhorst set to hold his pre-match press conference at 1:30pm.

Lawrence is enjoying life in Glasgow since making his move to Rangers and has already bagged three goals for his new team.

The 28-year-old would be a big miss for the Light Blues and could face a few weeks in the stands due to the knock.