Jamal Lewis, a former starting running back for the Baltimore Ravens and Cleveland Browns, has filed for Chapter 11 protection, saying he owes more than $10.5 million in debts,

.

Lewis said in court papers he's self-employed and earns $35,000 per month with nearly $14.5 million in assets. The report said Lewis also lists a lengthy line of creditors.

Lewis, 32, is among players to file suit against the NFL for concussion-related health issues.

A report Sunday in

said Lewis has bouts of memory loss, headaches, nausea, sleeplessness and light sensitivity as a result of playing nine seasons in the NFL.

"I'm 32," Lewis told The Plain Dealer. "Thank God I'm 32, but it's like, where is this thing going? You wonder what you've already done. ...

"The NFL has a responsibility. It's a game that a lot of guys want to participate in, but just because it's a privilege ... doesn't mean that you should be shorted the information. I know I can go out and tear up my knee or my ankle or my shoulder. But I never knew that from these constant hits to your head, they could cause long-term effects."

Lewis last played in 2009 for the Browns.