What 'Dad Bod'? Matt Damon shows off ripped upper torso in first still from the next Bourne movie

Matt Damon might be a married father of four, but the 44-year-old actor isn't about to let "Dad Bod" get the best of him.

Director Frank Marshall released a shot from the first day of principal photography for the upcoming fifth Bourne movie, and as rogue operative Jason Bourne, shirtless Matt is definitely undressed to impress.

The actor's abs don't seem to have aged a day since Good Will Hunting 18 years ago!

Although Matt sat out 2012's The Bourne Legacy, ceding lead-hero duties to Jeremy Renner, fans on Twitter seem to be thrilled that Matt is back in action.

"So happy to hear this. There is no Bourne without Matt!" one tweeted, while others compared Matt's alter ego to James Bond and '80s action god Rambo.

https://twitter.com/slestevez/status/641355900272275457