After knee troubles limited him to less than 30 minutes in the Texas Legends' last three games, Greg Ostertag informed the team Thursday that he is ending his comeback in the D-League.

Ostertag had his best game for the Frisco-based Legends last week at the D-League Showcase in Reno in front of scouts from numerous NBA teams, but the 38-year-old told ESPN.com on Thursday that the pain in his knees since then had become unbearable.

"They've been bugging me since I came back (in late December), but I could barely move (after Reno)," Ostertag said. "I felt good there and I played good. I get out there and sometimes I do get loose, but usually the 'don'ts' are longer than the 'dos.' It sucks, but I knew going into this what could happen."