4-time champion, All-Pro tight end Rob Gronkowski announces retirement
Rob Gronkowski says there is only one NFL coach who could lure him out of retirement - Mirror Online
Rob Gronkowski retires after 11 seasons, 4 Super Bowl championships
Rob Gronkowski announces retirement
On Football: Tom Brady's the GOAT and Rob Gronkowski isn't far behind
Packers: Improving defense faces huge test with Rob Gronkowski
Rob Gronkowski appears to take stance after being asked 'should men be allowed to play women's sports'
Rob Gronkowski won't return to the NFL even if Tom Brady asks him to - AS USA
Skip Bayless calls Rob Gronkowski a product of Tom Brady