With Jamal Lewis believed to be heading for injured reserve, Tony Grossi of the Cleveland Plain Dealer has identified the cause.
Lewis is the latest NFL player to be knocked out (literally and figuratively) with a concussion.
Per Grossi, Lewis was visiting a specialist on Wednesday. The veteran tailback could be addressing the situation publicly on Thursday.
As we reported earlier today, the Browns are expected to sign UFL standout DeDe Dorsey to replace Lewis.