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PITTSBURGH, Penn. - Michael Sam's former roommate at the University of Missouri said the St. Louis Rams' defensive end has changed.

Eric Waters told the Pittsburgh Tribune-Review after he watched an ESPN Outside the Lines interview with Sam that "he is not the same Michael Sam anymore."

Sam is in the middle of Rams training camp in pursuit of a roster spot and being the first openly gay player in NFL history. Waters, a tight end, was undrafted this year but invited to the Pittsburgh Steelers' training camp.

He explained his opinion of Sam's personality.

"Just the way he acts and carries himself," Waters said. "I was watching the NFL Network the other day and I think it was Marshall Faulk who said that he keeps referring to himself in the third person as Michael Sam this, Michael Sam that. That's not the same guy we know back when we were living together. He is not the same fun-loving, joking guy that really didn't care about stuff like publicity."

Waters told reporters he and Sam no longer communicate. While at Mizzou, Sam was the 2013 SEC co-Defensive Player of the Year and Waters caught eight passes in 2013.

The full story can be seen at the Pittsburgh Tribune-Review's sports page.

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