The British sensation Anthony Joshua burst onto the global scene with a dramatic knockout of long-reigning heavyweight kingpin Wladimir Klitschko in the universally acclaimed 2017 Fight of the Year. Now, he faces another significant challenge in Joesph Parker, a native of New Zealand with 24 wins, no losses and 18 knockouts. Watch the mega unification fight - live Saturday, March 31 at 5PM ET/2PM PT on SHOWTIME. Follow SHOWTIME Sports Facebook: https://www.facebook.com/ShoSports/ Twitter: https://twitter.com/SHOsports Instagram: https://instagram.com/shosports Official Site: http://www.sho.com/sports Follow SHOWTIME Boxing Facebook: https://www.facebook.com/ShoBoxing Twitter: https://twitter.com/ShowtimeBoxing Instagram: https://instagram.com/showtimeboxing Snapchat: https://www.snapchat.com/add/showtimeboxing Tumblr: http://showtimeboxing.tumblr.com/ Follow INSIDE THE NFL Facebook: https://www.facebook.com/insidetheNFL Twitter: https://twitter.com/insidetheNFL Instagram: https://www.instagram.com/insidetheNFL/ Follow A SEASON WITH NAVY FOOTBALL FaceBook: https://www.facebook.com/ASeasonWith/ Twitter: https://twitter.com/aseasonwith Instagram: https://www.instagram.com/aseasonwith/ Follow SHOWTIME Facebook: https://www.facebook.com/showtime Twitter: https://twitter.com/SHO_Network Instagram: https://instagram.com/showtime/ Youtube: https://www.youtube.com/user/SHOWTIME Official Site: http://www.sho.com/