SANTA CLARA -- The 49ers on Tuesday bypassed Jarryd Hayne off their own practice squad to sign running back DuJuan Harris to a two-year contract off the practice squad of the Baltimore Ravens.
The 49ers signed Harris and released running back Travaris Cadet. Hayne remains on the 49ers' practice squad, where he has been since the team waived him just prior to the 49ers' Nov. 1 game at St. Louis. Hayne is in his first season of playing American football after leaving behind a successful career in Australia's National Rugby League.
The 49ers also cleared rookie Mike Davis to begin practice. Davis sustained a fractured left hand in the game at St. Louis and was placed on injured reserve/designated for return. Davis is not eligible to play this week against the Detroit Lions, but could be promoted to the 53-man roster for the season finale on Jan. 3 against the Rams.
Running back Shaun Draughn, who has started the past six games, did not sustain a serious knee injury, a source told CSNBayArea.com. Draughn underwent an MRI examination on Monday. But with his availability uncertain for the final two games of the season, the 49ers added Harris, who is considered more of an every-down back.
Harris (5 foot 7, 206 pounds) has spent one season in Jacksonville (2011) and three seasons with the Green Bay Packers (2012-14). Throughout parts of his five NFL seasons, Harris has appeared in 26 games with two starts and carried 80 times for 312 yards and two touchdowns. He is signed through the 2016 season.
Cadet appeared in four games with the 49ers and gained 16 yards on seven carries. He also caught seven passes for 66 yards.