British sensation Anthony Joshua (18-0, 18 KOs) and former heavyweight kingpin Wladimir Klitschko (64-4, 54 KOs) will unify the heavyweight division as they meet for Joshua's IBF World Championship and the vacant IBO and WBA World Championships in front of record-setting 90,000 fans at Britain's largest stadium. The bout is the most significant heavyweight fight in more than a decade. SHOWTIME will televise live at 4:15 p.m. ET/1:15 p.m. PT from sold-out Wembley Stadium in London. Check out the live stream of the weigh-in!