Saracens have confirmed that forward Will Fraser will miss the rest of the season due to a persistent back injury.
The 25-year-old flanker will undergo surgery on Tuesday to fix the "long-standing" problem.
Fraser has made 44 appearances for Sarries since his debut back in 2011.
"It's obviously disappointing for Will and for us, but it's obviously in everybody's interest to sort out these issues once and for all," director of rugby Mark McCall told the club's official website. "Will is only 25, and he has plenty of great rugby in him, for club and country."
Saracens are in action on Sunday when they travel to London Welsh in the LV=Cup.
