By his incredibly high standards, the 29-year-old had a down year in 2018. He caught 47 passes for 682 yards and three touchdowns in the regular season and added another 191 yards in the playoffs.
The five-time Pro Bowler also ranked sixth among qualified tight ends in DYAR (defense-adjusted yards above replacement), per Football Outsiders.While Gronkowski's decision is somewhat unexpected given his age, it's not entirely surprising.