Former Ravens and Browns RB Jamal Lewis has filed for Chapter 11 bankruptcy protection. It could mean we'll soon hear stories about the 32-year-old Lewis attempting a comeback. Lewis last played in 2009, however, and averaged just 3.6 yards per carry his final two seasons. He's definitely played his final NFL down. Lewis is also a part of one of the myriad concussion-related lawsuits filed against the league.