One of Oregon’s key offseason additions will have to wait to make his debut.

Coach Dana Altman told fans at the team’s open practice on Tuesday that guard Jermaine Couisnard underwent knee surgery on Monday and will be out for “a while.” Altman also shared that guard Rivaldo Soares is also currently out. Couisnard sustained an injury during training camp and is currently being held out as he works on his rehab, according to Duck Territory’s Matt Prehm.

The 6-foot-4 Couisnard transferred to Oregon this offseason after spending four years at South Carolina.

A starter in 16 of his 26 appearances for the Gamecocks last season, Couisnard led the team in scoring at 12 points a game. He was a high-volume (17 shot attempts, six free throws per 40) guy with low efficiency (39.6% from the field, 32% from 3), but he produced for an SC team that went 18-13 while also supplying 3.2 assists, 2.5 rebounds, and 1.1 steals a game in just 25 minutes a night.

Against what was a rugged SEC, Couisnard posted exceptional numbers. He averaged 19.9 points and 5.8 assists per 40 minutes against conference foes. He scored a career-high 33 points against LSU on Feb. 19, doing so on 67% shooting from the field (12-of-18) and 50% shooting from deep (5-of-10).

Oregon is expected to lean on a trio of seniors in guard Will Richardson, wing Quincy Guerrier, and center N’Faly Dante this season. However, the experience and depth in the backcourt was looking like it could be a strength. Without Couisnard in the picture, more will be expected of Colorado transfer Keeshawn Barthelemy and JUCO transfers Brennan Rigsby and Tyrone Williams.