Outlander actor Sam Heughan sent fans into a frenzy with a post-exercise photo on Wednesday.
MORE: Sam Heughan's fans have the same concern after he reveals major news
In the snap, the star is sitting at the side of a boxing ring, looking distinctly bedraggled in shorts and a vest as he stares moodily into the camera. The picture was to announce his new role in Channel 4's Suspect, but fans were preoccupied by his fit physique.
WATCH: Sam Heughan stars in new Channel 4 drama Suspect
One wrote: "You're in such great shape. I'm jealous I need to work out more," while another said: "Oh boy, my heart skipped a few beats."
MORE: This Outlander star has a very famous relative - can you guess who?
MORE: Outlander: everything we know about season seven so far
Pro-athlete Tommy Brady showed his appreciation too, writing: "Decent."
This isn't the first time Sam has sparked a fan reaction with a workout photo. Back in April, the actor showed off his yoga skills on Instagram, with fans rushing to praise his tree pose.
Sam Heughan looked muscly in his latest photo
One wrote: "Perfect tree pose," while another commented: "Looking great!"
MORE: Outlander star Sam Heughan's shares yoga photo - fans urge him to take care
The Scottish thespian is known for being ultra-fit; as well as practicing yoga, he's recently shared photos of himself hiking in the lowlands of Scotland as he trains to walk up Ben Nevis.
Sam has also shared shots of himself looking sweaty in the gym, surrounded by weights – and given all the horse riding he does in Outlander, it's no surprise the actor needs to be at the top of his game fitness-wise.
MORE: Sam Heughan shares new photo from upcoming romance film - and fans are confused
As for whether Sam will be put through his fitness paces in his new role, we'll find out when the show makes its debut on Sunday 19 June at 9pm
While little is known about Sam's character, the trailer tells us that he is switching up his accent for the role and is playing an Englishman. His character, Ryan, can be heard saying: "Don't go sticking your nose into things that are best left well alone."
Like this story? Sign up to our HELLO! Mail newsletter to get other stories like this delivered straight to your inbox.