NBA

Knicks forward Jeffries considers blood spinning for knee

Jared Jeffries, who expects to return to the Knicks lineup tomorrow against the Bulls after an eight-game absence with chronic knee pain, told The Post he plans to investigate the controversial blood-spinning procedure used by Alex Rodriguez and Kobe Bryant during the offseason.

Lakers star Bryant said he was mulling retirement before the blood-spinning procedure took the pain away. The procedure calls for an ounce of blood to be removed, spun in a centrifuge and then injected back into the body.

Jeffries had offseason arthroscopic surgery on his left knee and said another operation is a “last resort.’’ He wants to try alternative measures to reduce the pain.

“I’m going to look into it,’’ he said. Earlier in his Knicks career, Jeffries used a hyperbaric chamber to heal quicker from a broken leg.

Jeffries, a key reserve big man, hasn’t played since March 21. He also missed four games during the six-game losing streak last month that eventually led to coach Mike D’Antoni stepping down.

Meanwhile, Bill Walker, who had elbow surgery in early March and was thought to be out for the regular season, said he has been cleared to play tomorrow.

Amar’e Stoudemire, according to a person familiar with the situation, is no longer shooting for Wednesday’s game in Milwaukee for his return.

A likelier return for Stoudemire, who has missed the last seven outings, is in eight days against the Heat.