Boston center Jermaine O'Neal has been ruled out for the rest of the National Basketball Association season after having wrist surgery on Friday, the Celtics said.

The six-times All-Star, who has averaged five points and 5.4 rebounds in 25 games this season, had arthroscopic surgery on his left wrist at Boston's New England Baptist Hospital.

A first-round draft pick by the Portland Trail Blazers in 1996, the 33-year-old O'Neal has played 16 seasons for five different teams in the NBA, averaging 13.7 points and 7.4 rebounds.

(Reporting by Mark Lamport-Stokes in Los Angeles; Editing by Julian Linden)