#4. Sam Simmonds
He has not played since the Chiefs’ Heineken Champions Cup last-16 first-leg win over Munster on 9 April.
“It’s been a niggly hip injury that’s been causing him pain,” Exeter director of rugby Rob Baxter said.
“The restrictive thing has been the pain, not so much the function.
“If he gets this sorted now that means he can have a good recovery time and a good pre-season, and it’s a huge year for anybody who’s got international ambitions next year, it being a World Cup year.
“So in some ways it’ll really help him get himself to the level he was a couple of years ago when he was banging tries in from everywhere.
“He’ll want to follow that through because that’s what led to his international and Lions recognition.”