Celebrity·Posted on Mar 7, 2016The Rock Unsurprisingly Beat Zac Efron In A Tire-Flipping RaceMaybe someday, Zac.by Michelle RegnaBuzzFeed StaffLinkFacebookPinterestTwitterMail By now, you've probably seen pictures of Zac Efron and The Rock on the set of Baywatch looking incredibly shiny and muscular. Pretty sure it's what the bros call "swole." Yesterday, The Rock shared this photo of him and Zac facing off in a "tire shrugging contest" that apparently lasted for hours. View this photo on Instagram According to the Rock's caption, production for the day had ended but he and Zac "refused to quit" because they're "badass." Pretty badass, indeed. 💪 💪 💪 Zac shared a similar picture on his account, as best bros do. And in this one, he appears to be winning. View this photo on Instagram But did anyone really think Zefron had a chance against ALL OF THIS??? The Rock was really nice about kicking Zac's ass. He made sure to note how proud he is of Zac and his bod. Honestly, what a bromance. #TwoMeatheadsActingLike12YearOlds Tap to play GIF Tap to play GIF