Bol has missed each of the Ducks' past four games and has appeared in nine total this season.
Oregon center Bol Bol announced that his Ducks career is over due to a nagging foot injury that has kept him out of each of the last four contests.
247Sports' Matt Prehm was the first to report that Bol has been dealing with a stress fracture in his left foot.
Per The Athletic's Sham Charania, Bol underwent surgery Thursday and will begin rehab next week. He'll be on crutches for eight to 10 weeks before returning to basketball activities. Bol had two screws inserted into his navicular bone and a bone graft from his pelvis added to speed up the healing process, his agent told Charania.
Bol, a former five-star recruit, averaged 21 points and 9.6 rebounds in nine appearances (all starts) this season.
The 7'2", 235-pound freshman is reportedly expected to begin rehab work in preparation for the 2019 NBA Draft.
Sports Illustrated's Jeremy Woo ranks Bol as the No. 9 prospect in the '19 class on his most recent big board.
In addition to Bol, the Ducks are currently without sophomore forwards Kenny Wooten and Abu Kigab, who are each dealing with injuries. Oregon enters Pac-12 play with a 9–4 record. The first conference matchup is scheduled against Oregon State at 8 p.m. ET on Saturday.