Tickets for The O2 Arena will be available for purchase at a later date.
KSI will face Alex Wassabi later this summer in London, capping off an almost three-year break from the ring.
Since his last bout, the YouTube sensation has produced two major-selling albums.
He has yet to lose in three fights, including two thrillers with Logan Paul.image credits:wikipedia
Now he's back in battle, against the courageous American Wassabi.
Wassabi defeated Deji earlier this year at the OVO Arena Wembley.
He will battle American Yusef 'Fousey' Erakat in a featured match, while rapper Blueface will face Faze Clan co-owner Thomas 'Temperrr' Oliveira.
The fight will be streamed live on DAZN throughout the world, but it will be a pay-per-view event for fans in the United Kingdom, US and Canada.