On a card also including an increasingly bitter bout between Logan Paul and Dillon Danis, Fury looks to follow up his win over Jake Paul in February with another victory against a YouTube star.
It is a significant step up in class for KSI, but he has shown little fear of ‘TNT’ despite Fury’s professional boxing career.
Here’s everything you need to know about where to watch the action.
How to watch KSI vs Tommy Fury
TV channel: The entire card will be shown live on sports streaming service DAZN, via their pay-per-view service at a cost of £19.99 in the UK.
Live stream: Fight fans will be able to access a live stream online via the DAZN app and website, once they have purchased the event.
Live blog: Follow the entire card tonight with Standard Sport’s dedicated fight blog.