Posted by Sabrina B. @gametimegirl

Rob Gronkowski is having himself quite the offseason.  He’s been seen everywhere partying and having fun. His most recent activity was attending a 1920’s casino night thrown by Playboy, according to a picture tweeted out by Playmate (and reported Evan Longoria girlfriend) Jamie Edmondson. Gronkowski decided to eschew an undershirt and went with just a vest and tie for formalwear.

Reggie Bush and Eagles lineman Todd Herremans was also spotted at the Playboy party over the weekend.  Check the pics…

SOURCES: YARDBARKER - Philly.com – TheSportsbank