Harlequins fly-half Nick Evans could miss the rest of the season due to a leg injury.
Director of rugby Conor O'Shea said on Tuesday that the 35-year-old former All Black could be out of action for three months if surgery is required on the injury he sustained during Saturday's 28-6 Premiership defeat at Gloucester.
"He's seeing a specialist and he'll be out for a minimum of six to seven weeks," said O'Shea.
"He's pulled a bit of bone off the leg, it's just whether, with the damage he's done, it will need to be looked at for an operation.
"If anything happens it would be around 12 weeks."
If Evans goes under the knife, he would be sidelined for the rest of the regular-season and face a race against time to be fit for either the Challenge Cup final or the Premiership play-offs in May, if Harlequins were to make either one.