Theo Strang is Bristol Bears only remaining specialist scrum-half with Toby Venner requiring surgery for an ACL and Max Green suffering a fresh injury, meaning utility man Ioan Lloyd may have to play the role of replacement No9 for the visit of Wasps.
Venner was signed last week on a short-term deal from Gloucester to cover for injuries to Andy Uren, Tom Whiteley and Harry Randall being away with the England team for the Six Nations.
However, after an eye-catching cameo in the second half against Worcester, he left the field with a knee injury which has subsequently been confirmed as an ACL, with the 24-year-old requiring an operation. Fellow loanee Green, meanwhile, complained of a wrist injury in training on Monday, leaving director of rugby Pat Lam's options thin on the ground.