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DAVIE, Fla. (USA Today) -- Miami Dolphins center Mike Pouncey isn't talking about a photo in which he and his twin brother wore hats in support of their embattled former University of Florida teammate, Aaron Hernandez.

"Look, I'm just here just to focus on football," Pouncey said on Sunday after the Dolphins' opening practice of training camp. "It's training camp right now, so we're just here to focus all on football."

The photo surfaced last week showing Pouncey and his brother, Pittsburgh Steelers center Maurkice Pouncey, wearing "FREE HERNANDEZ" hats at a nightclub.

Hernandez, who played with the Pounceys at Florida from 2007 to '09, was released by the New England Patriots on June 26, shortly after his arrest on a murder charge in connection to the shooting death of friend, Odin Lloyd, a 27-year-old semipro football player.

Maurkice Pouncey apologized on Monday, writing on Twitter that: "I fully recognize the seriousness of the situation involving my former teammate, and I regret that my actions appear to make light of that serious situation."

Asked Sunday why he didn't apologize as well, Mike Pouncey said, "We're all football right now. Any football questions, I'm welcome to answer."

Will he address it sometime?

"Once we get through football," Pouncey said.

Pouncey is entering his third season with the Dolphins, who drafted him 15th overall in 2010. While he seemed to indicate he regretted his decision to wear the cap, he acknowledged scrutiny of his life off the field is part of the job.

"Oh, I think it's all necessary," Pouncey said. "We get paid a lot of money to act a certain way, and that's the way we should be acting."