Andrew Bynum's first season with the Philadelphia 76ers can now be listed as a total loss.
Bynum, a 25-year-old center, will undergo season-ending arthroscopic surgery on both knees Tuesday.
"After many months of rehabilitation and consulting with numerous doctors, Andrew and the doctors treating him determined that this is the best course of action at this point," 76ers general manager Tony DiLeo said in a statement. "We will continue to monitor and evaluate his status moving forward."
Dr. David Altchek will perform the operation in New York.
Bynum has yet to play for Philadelphia since he was acquired last summer from the Lakers in the four-team deal that sent center Dwight Howard to Los Angeles. He was initially out due to a right knee ailment, then hurt both knees while bowling in November.
Over seven seasons with the Lakers, Bynum averaged 11.7 points, 7.8 rebounds and 1.6 blocks per game. Last season, he posted career highs of 18.7 points and 11.8 rebounds per game.