Boston Celtics forward Paul Pierce was stabbed in the face, neck and back while in the pool room of a nightclub early Monday and was listed in fair condition.
The 22-year-old player underwent surgery at New England Medical Center, Boston radio station WEEI-AM said, quoting an unidentified hospital source.
Pierce was stabbed about 1 a.m. while at a private event in the city's theater district, police spokeswoman Mariellen Burns said.
She added that he apparently was with several friends, including at least one unidentified teammate. The friends drove Pierce to the hospital. There were no immediate arrests.
Pierce was to report for the start of training camp next Monday. He apparently was in Boston to participate in Red Auerbach's charity golf tournament, which began today.
Pierce, 6-foot-7 and 220 pounds, averaged 19.5 points for the Celtics last season. He ranks second in the NBA in steals per game with 2.08.
Pierce, an All-American at Kansas, was drafted in the first round in 1998 after his junior season.