Credit: ABC Family

Shay Mitchell (Emily) may have a boyfriend these days, but that doesn't necessarily mean she's spending all of her time canoodling and going on dates with her beau. So what exactly is she doing in the wee hours of the night?

The Pretty Little Liars actress took to Instagram yesterday (August 5), posting a photo of herself looking sweaty in a boxing ring. She wrote, "Late night boxing session with @gabejohns. Thanks for the killer workout! #powpow." That's our girl!

And Shay's not the only PLL star to take on the intense workout. Her on-and-off screen bestie, Ashley Benson (Hanna), has been seen at Trinity Boxing Club in Los Angeles.

Between Ryan Guzman's (Jake) martial arts skills, plus these two ladies' boxing exercises, it looks like the PLL cast is ready to kick some "A" butt!

Catch the next episode of Pretty Little Liars on Tuesday, August 6, 2013 at 8 p.m. ET/PT on ABC Family.