The Browns have signed running back Jamal Lewis to a one year contract.  Lewis played in all 16 games for the Baltimore Ravens last season and he carried the ball 314 times for 1,132 yards (3.6 ypc) with 9 TD runs.  He also caught 18 passes for 115 yards (6.4 avg).  Look for Lewis to bump Reuben Droughns either to the bench or completely off of the Browns roster as he’s due a roster bonus next week.  Lewis has played in 91 games in his career (87 starts) and he’s carried the ball 1,822 times for 7,801 yards (4.3 ypc) with 45 TD runs.  He also has caught 160 passes for 1,365 yards (8.5 avg) with 2 TD catches.  Lewis has rushed for over 1,000 yards in five of his six seasons (he missed 2001 due to injury).  In 2003, Lewis ran for 2,066 yards and he had 14 TD runs that year.  He also set an NFL record when he rushed for 295 yards in a game against the Browns!  Lewis still runs hard and he’s fast enough to go a long way if he can break through the line.  This was a nice upgrade for the Browns as Reuben Droughns looked like the back up running back that he really is last season.  Now the Browns can go for the best available player in the first round of next month’s draft.