Chris Pratt Shows Off His Bulging Biceps at the Gym!

Chris Pratt‘s time at the gym is paying off!

The 39-year-old actor showed off his super buff biceps as he arrived at the gym for a workout on Thursday afternoon (October 11) in Los Angeles.

PHOTOS: Check out the latest pics of Chris Pratt

Chris kept things cool in a blue T-shirt and black shorts as he and his trainer headed to their daily workout session.

Late last month, Chris and his girlfriend Katherine Schwarzenegger were spotted kicking off their weekend with a workout!

FYI: Chris is wearing Steve Cook x Gymshark shorts.

10+ pictures inside of Chris Pratt arriving at the gym…