The Giants need 23-year old rookie RB Gartrell Johnson to step up due to injuries to Danny Ware (concussion) and Ahmad Bradshaw.  Johnson has played in 6 games for the Giants this season and he has carried the ball 11 times for 39 yards (3.5 ypc).  Johnson was a 4th round pick out of Colorado State last April of the Chargers but they cut him right before the season despite him being their leading rusher in the pre-season.  The Giants quickly snapped him up and now they want for Johnson to pay them back as Brandon Jacobs’ back-up starting this weekend against the Cowboys.