The 25-year-old utility back, who made his international debut against Canada last November, was stretchered off in the second half of the Warriors’ 34-23 Magners League defeat.

Before going off injured, Evans set up a try for Lome Fa'atau although it wasn’t enough to help Sean Lineen’s side to victory.

The injury looks poised to keep Evans out of Glasgow’s final game of the season and potentially any slim chance he had of being called up to the Lions squad as a replacement for Tom Shanklin.

Evans and brother Thom were drafted in to the Scotland side after the opening weekend defeat by Wales in the RBS 6 Nations and impressed for the remainder of the championship.

A Warriors spokesman said: "It is difficult to say how serious it is at this stage because of the swelling. He has a surgeon's appointment and will then have a scan."