Brady happy to see Gronkowski healthy after work with Alex Guerrero

Saturday wasn’t just about Tom Brady’s preseason debut, or Jimmy Garoppolo’s turnovers, or an encouraging drive from Rex Burkhead with which we’ll likely get carried away, or Cyrus Jones’ punt returns. It was about Rob Gronkowski playing in a preseason game.  Although Gronkowski turned heads in a memorable 2010 preseason debut, he hasn’t exactly been a safe bet to be seen by exhibition attendees. As he has battled injuries and the Patriots have managed him over the years, Gronkowski went four straight preseasons without taking the field once.  That changed Saturday, when the veteran tight end played in 13 snaps over two series. He didn’t get a single target, but he also left the game unscathed