Rob Gronkowski announces retirement from the NFL

Rob Gronkowski was at Gronk Beach in Las Vegas leading 'USA' chants and paying tribute to military veterans.

Rob Gronkowski is reportedly going to retire from the NFL.

Sports journalist Jordan Schultz tweeted the Tampa Bay Buccaneers star told him he was calling it a career after four Super Bowl titles.

He also announced the decision on Instagram.

This is a breaking news story. Check back for updates.

Ryan Gaydos is the sports editor for Fox News and Fox Business. Story tips can be sent to Ryan.Gaydos@fox.com.