Wasps have confirmed back-row forward Sam Jones has suffered a broken leg training with England.
Jones, who was recently called up to the Red Rose training squad for the first time, fractured the fibula in his right leg and is now facing a lengthy spell on the sidelines.
It is a huge blow for the 24-year-old, who was expected to feature for Eddie Jones' side in the autumn internationals, and he will now see a specialist on Friday to discover the full extent of the injury.
Wasps director of rugby Dai Young insists it is too early to make a prediction on the length of time he will be out of action.
"It’s a big blow and I really feel for Sam, because he has worked his socks off for Wasps and deservedly got his call-up to England," Young said.
"Sam has been one of the first names on my team sheet this season and he will be a big loss for us, but we are lucky to have a lot of talented back rowers at the club who have already stepped up this season.
"My biggest disappointment is for Sam as he’s been playing so well and I’m sure would have made a good impression in the England camp. These things happen, but you can’t help but feel sorry for him.
"It’s too soon to know how long he will be out, but our medics and physios will look after him and we look forward to having him back when he is ready."