Dominic Artis was one of the main reasons why Oregon advanced to the Sweet 16 last season.
The Ducks were 23-5 last season with Artis in the lineup and 5-4 when he was out with injuries.
Dana Altman's team is off to a 9-0 start without Artis and Ben Carter, who were suspended in early November for selling shoes that were provided to them by the university.
The duo will return for Oregon on Tuesday night against UC Irvine, and both will come off the bench.