Rob Gronkowski says the 2019 Patriots are a bunch of "BEASTS" -- and he's even joking about unretiring and getting back with his squad in Week 14!
The 30-year-old tight end was RAVING about his former (?) team on the way out of Barstool Sports on Monday night ... where he joked with El Pres Dave Portnoy that Week 14 would be a great time to come back to the Pats!
As we previously reported, Gronk said he retired because his body was just too banged up and he wasn't having fun playing football anymore.