Schefter: Possible back surgery for Gronk

ESPN NFL Insider Adam Schefter tweeted the following today: "A disc issue in Rob Gronkowski's back is being examined and could require surgery. This does not sound good ...

Then followed up with this: "Rob Gronkowski's back issue considered minor, per source. If he needs surgery it'd be during time frame that he'd be out with arm surgery. ...

And this: "Quote from person close to Gronk: 'He is going to be fine long term. (He is) not worried about the short term, i.e. start of training camp.'"

Mike Garofolo of USA Today first reported the possibility of Gronkowski needing back surgery.