Gloucester scrum-half Jimmy Cowan has been ruled out for at least six months with knee ligament damage.
The former All Black was injured during Gloucester's 27-11 win over Northampton at Franklin's Gardens on Saturday.
Director of Rugby at Gloucester, Nigel Davies, confirmed that Cowan would miss at least six months.
"He's very positive and just wants to play. He'll do whatever he can to get back sooner than that," said Davies to BBC Sport.