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Len Pasquarelli of ESPN.com reports that Dolphins linebacker Joey Porter is having his right knee evaluated after missing two days of practice.

"It was something that he noticed during the offseason program," coach Cam Cameron said. "He was working his way through it. It isn't something that happened since we started practice. He just wanted to get it checked out."

"I played through it so well through the playoffs that nobody thought [the knee] was as bad as it was," Porter said in August 2006. "It was hurting, but nothing where I couldn't play through it. At that point, it swelled up, I iced it, I took the necessary precautions. But, at the same time, I never knew there were some loose particles in there and wondered why it kept showing up in the offseason when I'm working out."

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