The Ravens made their signing of quarterback Ryan Mallett official Tuesday as part of a seven-player set of transactions that saw two players waived and veteran defensive end Chris Canty placed on season-ending injured reserve.
Mallett takes the roster spot of quarterback Bryn Renner, who was promoted from the practice squad Saturday to back up Jimmy Clausen with Matt Schaub unable to play. It's unclear which of Clausen or Schaub is the Ravens starter this weekend, but Mallett could figure more into 2016, when Joe Flacco is expected to return from knee surgery.
Rolle, who was signed to the practice squad last month after the Houston Texans waived him, has three career interceptions in 18 games over two seasons as the Texans nickel cornerback. The 6-foot Rolle was one of several players Ravens coach John Harbaugh said could get a chance to play cornerback over the last few weeks of the season.
Magee has been on the active roster for three games this season, playing two on special teams. He will be the third running back on the roster, replacing running back-return specialist Raheem Mostert in that role.
Mostert played one offensive snap in seven games with the Ravens, but was the primary kick returner in that time, during which he averaged 32.8 yards on five returns. Rookie Kaelin Clay could take over those duties.
Guard/tackle Marcel Jones was added back to the practice squad, leaving one spot open. Renner or Mostert could return if they clear waivers Wednesday.