Rob Gronkowski has announced his retirement from the NFL.
New England Patriots star tight end took to social media to share the news: "It all started at 20 years old on stage at the NFL draft when my dream came true.
"And now here I am about to turn 30 in a few months with a decision I feel is the biggest of my life so far."
It ends a nine-year career that included helping the Patriots to another Super Bowl triumph in February when they beat the Los Angeles Rams.