Duke big man Sean Obi underwent knee surgery on Wednesday at the Hospital for Special Surgery, a Duke spokesperson told NBCSports.com.
A 6-foot-9 transfer from Rice, Obi was used in a very limited role as a sophomore with the Blue Devils. He played in just 10 games and scored a total of five points. As a freshman at Rice, Obi averaged 11.4 points and 9.3 boards.
Obi tweeted out this picture early on Thursday morning after the operation: