Leicester Tigers forward Ollie Chessum is a doubt for England’s autumn internationals after sustaining a knee injury in training.
England are waiting on the results of a scan and have yet to confirm the severity of the injury to the lock, who can also play at flanker.
The 24-year-old was a key part of England’s pack during this year’s Six Nations but missed the summer tour of Japan and New Zealand following shoulder surgery.
Steve Borthwick’s England side begin their November campaign at home to the All Blacks next Saturday.
Speaking after his side’s 32-29 win at Saracens, Leicester boss Michael Cheika described Chessum as a “warrior” and said he would be “ready to go” as soon as possible.
The Tigers won at the Stone X for the first time since 2018 to make it five wins out of six under new boss Cheika.
Sarries – who were badly hit by injuries in the build-up – missed the chance to go top of the table, with Bath leading the Premiership after six rounds following a 40-13 win over Sale.
Elsewhere, Gloucester beat Newcastle 36-7 at Kingsholm.