Dolphins' Smiley, Porter miss practice

DAVIE, Fla. -- Miami Dolphins starting guard Justin Smiley has been sent to a doctor and remains sidelined because of a shoulder injury.

Also sitting out practice Thursday for a second consecutive day were starting outside linebacker Joey Porter (knee), backup nose tackle Paul Soliai (ankle) and special teams contributor Erik Walden (hamstring).

Smiley, who has started all eight games for Miami this season, has a history of shoulder problems. He missed the second half of the 2007 season while with San Francisco because of a shoulder injury.

Possibilities to replace Smiley at left guard Sunday against Tampa Bay include Joe Berger, Nate Garner and rookie Lydon Murtha.