Saracens director of rugby Mark McCall revealed on Saturday that centre Joel Tomkins will be out of action for up to three months.
Speaking after Sarries' 16-9 victory over Exeter, McCall said Tomkins had sustained a knee injury while on international duty.
"He picked up the injury in the last five minutes of the game against New Zealand and it is a maximum 12-week injury," said McCall.
McCall also put fears that his team might have a fly-half crises to rest - stating that both Owen Farrell and Charlie Hodgson would be available for selection next week.
Farrell did not make the trip to Devon as he was rested while Hodgson took a knock to the head in what turned out to be an admirable display in the absence of the first choice pivot.
"Owen is resting after three busy weeks with England, and he has played a lot for us, with Charlie not being around for the first six weeks, but he will be back for next week," added McCall.
"Charlie is fine. He got a knock on the head, and you have to be careful these days.
"You don't want to take any risks."
The victory over Exeter ensured that Saracens retain their position at the top of the Aviva Premiership standings.