Rising lightweight contender Anthony Peterson of Washington injured his left knee, forcing him to withdraw from his 10-round pay-per-view fight against Edner Cherry on Saturday night at Madison Square Garden.
While training Friday, Peterson (28-0, 19 KOs) heard a "clicking noise" in his left knee area, did an eight-mile run anyway and aggravated the area behind his kneecap, according to promoter Top Rank. They are awaiting results of an MRI.
"Anthony is very, very upset as he really wanted to fight at Madison Square Garden," said Barry Hunter, Peterson's manager and trainer. "He is physically unable to compete at this time."
Cherry (24-6-2, 12 KOs), returning to his more natural 135 pounds, was looking at the bout as a way to rebound from losing a decision to junior welterweight titleholder Timothy Bradley Jr. in September.
Peterson and Cherry were due to meet on Top Rank's split site pay-per-view card. Kelly Pavlik's middleweight championship defense against Marco Antonio Rubio headlines the telecast from Youngstown, Ohio, while the rest of the telecast will emanate from Madison Square Garden, where Miguel Cotto faces Michael Jennings for a vacant welterweight belt in that arena's main event.
With the Peterson-Cherry bout off, Top Rank moved super middleweight Matvey Korobov's scheduled four-round bout with Cory Jones (4-4, 1 KO) onto the pay-per-view. It will open the show.
Korobov (3-0, 3 KOs), a 2008 Russian Olympian, is a highly touted prospect who signed with Top Rank after the Olympics and now lives in Florida.
Also on the pay-per-view, junior middleweight John Duddy faces Matt Vanda in a 10-round fight.
Dan Rafael is a senior boxing writer for ESPN.com.