Ravens linebacker Jameel McClain will miss at least the first six weeks of the regular season as he recovers from a bruised spinal cord.
Baltimore placed the inside linebacker on the physically unable to perform list because he still is working his way back from the December injury.
Ravens coach John Harbaugh said last week that Baltimore hasn't ruled out the possibility of McClain playing this year, but he's also made it clear that McClain will not return to football until the MRI of his spinal cord is clear.
McClain has been a starter for the Ravens each of the last three years. He had 79 tackles in 13 games last season prior to his injury.
NOTE: Olympic champion Michael Phelps was a guest at Baltimore's practice Tuesday. The Baltimore native and avid Ravens fan has been a guest at practice in the past and frequently attends games.