BOSTON -- Al Jefferson will once again have his development stalled.
The Boston Celtics forward will be sidelined indefinitely after undergoing a successful appendectomy, the team announced Wednesday.
Jefferson, 21, had the surgery performed by Dr. Steven Camer and Dr. Farhat Homsy at New England Baptist Hospital. Celtics team physician Dr. Brian McKeon assisted in the procedure.
"I don't think that it's a major setback," executive director of basketball operations Danny Ainge told the Boston Globe. "It's a minor setback for Al. We feel like he'll 100 percent in two or three weeks. That's why we have a 15-man roster."
Team spokesman Jeff Twiss said there was no immediate timetable for Jefferson's return to the court, but the player is "resting comfortably."
In three games this season, Jefferson is averaging 11.3 points and 7.0 rebounds.
The 15th overall pick in 2004, Jefferson will miss a significant amount of time for the second straight season. Last year, the 6-foot-10, 265-pounder was limited to 59 games because of ankle problems. In 133 career games, Jefferson has averaged 7.3 points and 4.8 rebounds.
Information from SportsTicker was used in this report.