Mark Wahlberg Beefs Up For 'The Fighter'

A shirtless Mark Wahlberg looks like he’s packed on a few pounds for his role in The Fighter, as he walks back into his trailer in Los Angeles on Monday (March 15).

One of his bodyguards/production assistants also acted like Mark‘s personal umbrella holder, blocking the sun from Mark‘s face.

Mark was last spotted on the set of The Fighter back in July. It looks like he’s lost a bit of definition since then!

10+ pictures inside of a beefed-up Mark Wahlberg…