MIAMI (AP) -- Ronnie Brown's season has ended with an injury -- again.
The Miami Dolphins' leading rusher was placed on injured reserve Wednesday because of a right foot injury suffered in Sunday's victory over Tampa Bay.
A fifth-year pro, Brown missed the final nine games of the 2007 season with a right knee injury.
The Dolphins had hoped Brown might be able to return this year but made the roster move after he was examined by a specialist. It's a big blow for a team that ranks fourth in the NFL in rushing and 30th in passing.
The move was announced shortly after the Dolphins (4-5) departed for Thursday's game against Carolina. Ricky Williams, the 2002 NFL rushing champion, will replace Brown in the starting lineup.
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Gradkowski replaces Russell at QB for Raiders
ALAMEDA, Calif. -- The Oakland Raiders benched former No. 1 overall pick JaMarcus Russell on Wednesday, handing the starting job to journeyman Bruce Gradkowski for the foreseeable future.
Coach Tom Cable made the announcement of the change following practice as the Raiders (2-7) prepare to play the Cincinnati Bengals on Sunday. Cable said this was not a temporary move, that his plan is to stick with Gradkowski.
"I don't want to be like that," he said. "This is where we're headed and what we're going to do. He'll take this team and go with it."