Dolphins release Rogers; activate CB Roundtree

Updated: November 8, 2003, 5:44 PM ET

MIAMI -- Miami Dolphins linebacker Zach Thomas will miss Sunday's game at Tennessee because of an injured groin.

Thomas, who leads the Dolphins with 104 tackles this season, was downgraded to "out" on the team's official injury report Saturday. Thomas was unable to practice with the team on Friday and will likely be replaced in the starting lineup by Tommy Hendricks.

Also Saturday, the Dolphins released return specialist Charlie Rogers and activated cornerback Alphonso Roundtree from the practice squad.

Rogers was acquired in April from Buffalo to give Miami's return game a boost. He had a one-year, $555,000 contract.

Roundtree was released by the Dolphins on Aug. 31 and signed to the practice squad a day later. He may have to play Sunday in place of cornerback Patrick Surtain, who has an ankle injury and is listed as questionable.

This story is from ESPN.com's automated news wire. Wire index