Luke entered the ring on Tuesday by sharing a photo that shows the Chris and a group of friends enjoying a few beers in the sun. The group pic is hijacked, however, by the actor's bulging muscles glistening in the sunlight.
"Hey @chrishemsworth do you even lift bro? @lukemun @emerysurfboards" Luke chided his brother in the caption. Obviously that was a rhetorical question.
The bro battle actually began back in October when Liam posted an Instagram photo of his dog Tani chewing on a Thor action figure. "Tani's favorite chew toy #Thorsday" he captioned the photo of the mangled doll in the dog's mouth:
Chris responded by scribbling on Liam's December cover of Men's Health, and sharing a photo of his artwork on Instagram:
Liam fired back a few days later by posting a photo of Chris's December cover of Vanity Fair, which he doctored with red marker.
"Really great cover bro! @chrishemsworth," he wrote alongside the pic of his handiwork.
Liam's retaliation seemed to have ended the sparring, that is, until Luke recently joined in. Keep it comin' boys!