Ryan Mathews will be busy in passing game

ESPN's Bill Williamson believes Chargers RB Ryan Mathews will finish in the "60-catch range" this season.  Mathews finished with 50 grabs last year, but that was with RB Mike Tolbert leading the backfield with 54 receptions.  Since QB Philip Rivers took over as San Diego's starter in 2006, the team's RBs have averaged a whopping 102 catches per season.  That number has never fallen below 76 in those 6 years.  Without a real legitmate threat to steal passing-down work on the roster, Mathews figures to be extremely busy as a receiver this season.  "His fine performance catching the ball last year clearly gave Rivers and the San Diego coaching staff confidence he can succeed in the role," Williamson writes.  We currently have Mathews projected for 54 catches.