(BOSTON) -- The injuries just keep on mounting for the Boston Celtics.
The team announced Friday that rookie forward Jared Sullinger underwent lumbar disc surgery on his back and will miss the remainder of the season.
Sullinger left Wednesday night's game against the Sacramento Kings in the first quarter with back spasms and did not return.
The 21st overall draft pick out of Ohio State University was averaging 6.0 points and 5.9 rebounds in just under 20 minutes per game for the Celtics, who are clinging to the East's eighth and final playoff spot.
The news came less than a week after All-Star point guard Rajon Rondo went down with a torn ACL and will also miss the rest of the season.
Sullinger is expected to ready for training camp this fall.
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