Pittsburgh Steelers running back Rashard Mendenhall (34) celebrates as he gets into the end zone for a touchdown in the fourth quarter of the NFL football game against the Baltimore Ravens, Sunday, Nov. 6, 2011, in Pittsburgh. (AP Photo/Gene J. Puskar)

Baltimore Ravens outside linebacker Terrell Suggs (55) looks to tackle Pittsburgh Steelers running back Rashard Mendenhall (34) during the third quarter of an NFL football game on Sunday, Nov. 18, 2012, in Pittsburgh. Baltimore won 13-10.(AP Photo/Don Wright)

Pittsburgh Steelers running back Rashard Mendenhall (34) dashes past Philadelphia Eagles outside linebacker Mychal Kendricks (95) and the rest of the Eagles defense for a long run in the first quarter of an NFL football game in Pittsburgh, Sunday, Oct. 7, 2012. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers running back Rashard Mendenhall (34) celebrates after scoring a touchdown that gives the Steelers a 20-0 fourth quarter lead during the NFL week 16 football game against the St. Louis Rams on Saturday, December 24, 2011 in Pittsburgh, Pennsylvania. The Steelers won the game in a 27-0 shutout. (AP Photo/Paul Spinelli)

Pittsburgh Steelers' Rashard Mendenhall celebrates after scoring a touchdown during the second half of the NFL football Super Bowl XLV game against the Green Bay Packers Sunday, Feb. 6, 2011, in Arlington, Texas. (AP Photo/Dave Martin)

Pittsburgh Steelers running back Rashard Mendenhall (34), center, breaks through the line to score a touchdown in the first quarter of a preseason NFL football game against the Atlanta Falcons on Saturday, Aug. 27, 2011, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers' Rashard Mendenhall runs away from Green Bay Packers' Clay Matthews during the second half of the NFL football Super Bowl XLV Sunday, Feb. 6, 2011, in Arlington, Texas. (AP Photo/Charlie Krupa)

Pittsburgh Steelers running back Rashard Mendenhall (34) gets past Baltimore Ravens inside linebacker Ray Lewis, top, to score a touchdown in the fourth quarter of the NFL football game, Sunday, Nov. 6, 2011, in Pittsburgh. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers running back Rashard Mendenhall (34) gains yardage as Arizona Cardinals defensive back Richard Marshall defends during the fourth quarter of an NFL football game, Sunday, Oct. 23, 2011, in Glendale, Ariz. The Steelers won 32-20. (AP Photo/Matt York)

Pittsburgh Steelers' Rashard Mendenhall is hit by Green Bay Packers' Pat Lee as he scores a touchdown during the second half of the NFL Super Bowl XLV football game Sunday, Feb. 6, 2011, in Arlington, Texas. (AP Photo/Charlie Riedel)

Pittsburgh Steelers wide receiver Antonio Brown (84) beats Baltimore Ravens cornerback Lardarius Webb on a long pass during the second half of an NFL divisional football game in Pittsburgh, Saturday, Jan. 15, 2011. The play set up Rashard Mendenhall's touchdown to give the Steelers the 31-24 win. (AP Photo/Matt Slocum)

Pittsburgh Steelers' Rashard Mendenhall (34) runs for a touchdown against the Buffalo Bills during the first half of an NFL football game in Orchard Park, N.Y., Sunday, Nov. 28, 2010. (AP Photo/David Duprey)

Pittsburgh Steelers running back Rashard Mendenhall (34) celebrates after scoring a fifty yard touchdown run in overtime against the Atlanta Falcons during an NFL football game in Pittsburgh, Sunday, Sept. 12, 2010. Pittsburgh won 15-9 in OT.(AP Photo/Don Wright)

Pittsburgh Steelers running back Rashard Mendenhall (34) walks off the field after his 50-yard game-winning touchdown run against the Atlanata Falcons in overtime of an NFL football game in Pittsburgh, Sunday, Sept. 12, 2010. The Steelers won 15-9. (AP Photo/Gene Puskar)

Pittsburgh Steelers running back Rashard Mendenhall (34) beats Detroit Lions' Anthony Henry (32) and Marquand Manuel (40) for a touchdown in the first quarter of NFL football game Sunday, Oct. 11, 2009, in Detroit. (AP Photo/Duane Burleson)

Pittsburgh Steelers running back Rashard Mendenhall, left, scores a touchdown past Buffalo Bills cornerback Terrence McGee in the second quarter of the NFL preseason football game in Pittsburgh, Saturday, Aug. 29, 2009. (AP Photo/Don Wright)

Illinois running back Rashard Mendenhall tries to break a tackle in the first half of a football game against Purdue, Saturday, Nov. 11, 2006, in Champaign, Ill. (AP Photo/Stephen Haas)

Illinois' Rashard Mendenhall (5) goes against Northwestern's Deante Battle, bottom, and Brad Phillips, back, just short of the goal line during the first half of the college football game at the University of Illinois in Champaign, Ill., Saturday, Nov. 17, 2007. (AP Photo/Brad Vest)

Illinois running back Rashard Mendenhall during the 2008 Rose Bowl game against the USC Trojans at the Rose Bowl in Pasadena, California on January 1, 2008. The Trojans defeated the Illini 49 - 17. (Ben Liebenberg/NFL)