Watch Dolph Lundgren spar in the new Imagine Dragons video

The band faces off against Rocky's nemesis in the new video for anthem 'Believer'

Anyone who came of age in the 80s will have fantasised, at some point, about sparring against Sylvester Stallone's Rocky IV nemesis, Ivan Drago. Including, it seems, US rock band Imagine Dragonss; they tapped the actor who played him, Dolph Lundgren, to star in the video for their latest single, 'Believer'.

Though frontman Dan Reynolds stuck to a ketogenic diet and took boxing lessons for a month to get in ring-ready shape, he still wasn't quite a match for Lundgren. "Dolph caught me with a straight right to the jaw on accident and almost knocked me out,” Reynolds told EW.com. “I think we actually kept that scene.” Watch the video and see if you can spot the shot.