That’s because the apparel brand has agreed to sign a sponsorship deal with Top Rank Boxing, which is promoting the fight.

“We liked the opportunity of being part of the first fight in new Yankee Stadium and being live on HBO,” said Steve Battista, Under Armour’s senior vice president of brand. “We’re also focused on our current campaign of combine training and boxers go through a level of combine training that is levels above anything else.”

The deal, negotiated by New York-based Leverage Agency includes the logo in the center of the ring used for the eight fights, the final two of which will be televised on HBO and in 150 countries around the world. Under Armour will also get in ring mentions by Michael Buffer, signage in the boxers’ corners and will run a commercial that features UA athletes Brandon Jennings, Michael Phelps, Georges St. Pierre and Lindsey Vonn on the stadium Jumbotron.

“Under Armour is a great partner to have,” said Top Rank president Todd DuBoef. “We appreciate the leap of faith that they have made by supporting boxing and are excited to deliver for them on this huge platform.”If there was any doubt that Martirosyan, whose left eye was swollen from the fifth round on, was going to win, he sealed the deal with a 10th-round knockdown in which he caught Greene behind the head with a right hand.

Greene, and amateur standout and 2004 U.S. National Golden Gloves winner, just wasn’t busy enough, throwing one punch at a time, mainly a right jab that wasn’t particularly effective.

“I didn’t have it tonight,” said Greene, who suffered a cut over his right eye late in the fight. “I wasn’t busy enough and he was getting in the first shot,” said Greene, 24.

Martirosyan Freddie Roach was pleased with Martirosyan’s performance.