LAS VEGAS (AP) — A mixed martial arts fighter once featured in Spike TV’s “The Ultimate Fighter” series pleaded the equivalent of no contest Monday to felony attempted sexual assault in an April 2010 attack on a sleeping woman at his home.

Michael Whitehead, 30, acknowledged in a Las Vegas court that he could face two to 20 years in prison at sentencing Jan. 19, and he will have to register as a sex offender, the Las Vegas Sun reported ( ). He could receive probation, depending on the results of a presentencing psychological evaluation.

Whitehead entered a so-called Alford plea, meaning he did not admit guilt but conceded prosecutors could prove their case against him. Prosecutor Jake Merback said the state agreed to make no sentencing recommendation.

Whitehead and his lawyer, William Terry, declined comment outside court. Terry didn’t immediately respond to a message from The Associated Press.

Whitehead had faced sexual assault, attempted sexual assault and lewdness charges after a 32-year-old woman accused him of attacking her while she slept following a party. A second woman alleged that Whitehead groped her while she slept.

Police also reported finding more than 40 marijuana plants growing in an upstairs bedroom at his home, but Whitehead was not charged with a drug offense.

Whitehead remains free on $14,000 bail pending sentencing.

He competes as “Iron Mike” Whitehead and has a record of 26 wins and seven losses.