"Be curious my friends! #challengeaccepted #bottlecapchallenge Passing this on to our guy @johnmayer …. hey John if you can’t complete this challenge @erlsn.acr and I decided you have to come to Hawaii after your tour and kick it with us until you complete it," wrote UFC featherweight champion Max Holloway, who recently took to social media and posted a video of himself opening a bottle in the most unconventional way. Check it out!
