According to Evan Silva of Rotoworld.com, ESPN’s Ed Werder reported that Patriots tight end isn’t close to getting on the field as he continues to rehab from offseason back surgery.
ESPN's Ed Werder said on NFL Insiders Rob Gronkowski (back) "seems to be a ways away yet." Still working on core strength & conditioning.
— Evan Silva (@evansilva) August 14, 2013
With the emergence of rookie Zach Sudfield in camp so far, I could see Gronk starting out the regular season on the PUP list.