Leicester Tigers centre Matt Toomua has been ruled out of action for six months as he undergoes surgery on a knee injury.
Australia international Toomua joined Leicester from Super Rugby outfit Brumbies ahead of the 2016-17 season and was forced off in the first half of the 27-17 European Champions Cup win over Racing 92 on Sunday.
Subsequent examinations have revealed damage to his posterior cruciate ligament, which requires a reconstruction.
Tigers director of rugby Richard Cockerill confirmed on Wednesday the problem would require surgery, with Toomua potentially ruled out for the remainder of the season.
"Matt Toomua ruptured his PCL. He's having a reconstruction on that today and that will be probably six months recovery time," said Cockerill.
Richard Cockerill confirms Matt Toomua having surgery on his knee and will be out for around six months. We wish him a speedy recovery pic.twitter.com/ZL2Mt1NmGW-- Leicester Tigers (@LeicesterTigers) October 26, 2016
"We've got some options in the midfield. Clearly having Matt and Manu [Tuilagi] not available at this point is disappointing, but we've got some good young players.
"We're not going to have Matt, probably for this season. He may scrape in at the end of the season if everything goes to plan, but the longer you leave those injuries the better. So it probably looks like next season for Matt Toomua."
Leicester face Premiership leaders Sarancens in their next outing on Saturday.