Willie Reed's preseason was a brief one.

The Nets announced Thursday that the reserve center has been diagnosed with a torn ulnar collateral ligament in his right thumb, an injury that occurred in the first half of Wednesday's 109-105 preseason loss to the Celtics. Reed underwent an MRI on Thursday that revealed the injury and is expected to undergo surgery Friday at the Hospital for Special Surgery. After his surgery, a timetable will be determined.

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Reed made his preseason debut after missing the Nets' first three games while working through a right quadriceps strain. Raw at 6-11, 230 pounds, the 25-year-old was inked to a partially guaranteed one-year deal in the summer to potentially provide depth behind Brook Lopez.

His injury is yet another for the Nets to sift through.

Andrea Bargnani hasn't played in the preseason yet because of a tight left hamstring. Rookie Rondae Hollis-Jefferson sprained his right ankle in last Saturday's game against the 76ers and didn't play Wednesday. Donald Sloan also sat out against the Celtics with a sore left hamstring.

Markel Brown suffered a left oblique strain during training camp at Duke and will miss the rest of the preseason. His status should be updated next week.

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Add all the injuries up and the Nets aren't exactly off to an ideal start with their Oct. 28 season opener looming.