It appears he won't be let out of the stable just yet.
The former Alabama star is scheduled to undergo an MRI, although it's not believed to be a serious injury, Cabot reported. The No. 3 overall draft pick had the knee in a sleeve Tuesday as he rode a stationary bike (terrifying Browns fans worldwide).
Here's the rest of the news in a busy day for running backs around the NFL:
» The Arizona Cardinals activated running back Beanie Wells off the active/physically unable to perform list, and he took part in Tuesday's walkthrough, The Arizona Republic reported. Wells is being pressed for carries by second-year pro Ryan Williams, who carried the ball often Tuesday. Wells enjoyed his best season in 2011, but the committee approach is alive and well in Arizona.
»Broncos rookie running back Ronnie Hillman has spent the past week sidelined with a hamstring injury, The Denver Post reported Tuesday. Team executive John Elway has gushed over Hillman's speed and versatility, and he was drafted to take the No. 2 role behind Willis McGahee. But until he gets on the field, Hillman sits No. 3 on the Broncos' depth chart behind Lance Ball.
» NFL Network's Michael Lombardi listed New England Patriots running back Brandon Bolden as a fantasy sleeper on Tuesday's edition of "Inside Training Camp Live." The undrafted rookie has turned heads this offseason, but Stevan Ridley is our pick to take the bulk of work left by the absence of BenJarvus Green-Ellis. We'll keep our eye on Bolden.
» The Kansas City Chiefs saw last season wiped out by early injuries to key starters, including running back Jamaal Charles, who rumbled for 1,467 yards in 2010 before tearing his anterior cruciate ligament in Week 1 in 2011. We're about to see his return. The Kansas City Star reported Monday that Charles will play in Friday night's preseason tilt against the Cardinals.
»Anthony Allen and Bernard Pierce are fighting it out for the No. 2 role behind Ray Rice in Baltimore, but with Pierce struggling through a hamstring injury, Allen has been given an opportunity to make his case. It's not going well for the second-year pro. The Baltimore Sun reports Allen "hasn't demonstrated much in the way of moves." We don't see a real competition here. Pierce was drafted to contribute.