Sky Sports Box Office is to show the much-anticipated clash between Anthony Joshua and Joseph Parker on March 31st.
Joshua is the current holder of the IBF and WBA belts, while Parker is the WBO champion - and both fighters will be aiming to protect their unbeaten records.
Indeed, Joshua has 20 victories, all by knockout, and Parker has 18 stoppages from his 24 wins.
The bout takes place at the Principality Stadium in Cardiff - where Joshua successfully defended his titles last October.
Sky Sports will be offering extensive support programming in the run-up to the clash across both its TV and digital platforms, along with pre-fight behind-the-scenes coverage.
Adam Smith, Head of Boxing at Sky Sports, commented: "There is no doubt that this will be an unmissable fight, with two unbeaten fighters, multiple heavyweight belts on the line and a battle to maintain their winning streak."
Barney Francis, Managing Director of Sky Sports, added: "Last year was the vindication of our belief in Anthony Joshua when we first started this journey together in 2013.
"We knew he could be the best heavyweight in the world, and last year the world saw that is the case. 2018 promises to get even better for Anthony."
Non-Sky TV customers will be able to keep up with the action via PC, mobile and tablet devices, as well as through the Sky Sports Box Office streaming service, which is available through the NOW TV box.
Sky added that this fight is part of what promises to be "another stellar year of boxing on Sky Sports", which includes the eagerly awaited Bellew vs Haye rematch on Saturday May 5th.