KSI and Swarmz will don the same gloves and fight for the same amount of time as professionals when they meet in the ring at The O2 arena.
The rapper, who was once friends with KSI, only started training three weeks ago when it was made clear that Alex Wassabi would be pulling out with a concussion. But he has been sanctioned to compete in one of two fights that the YouTuber will be taking part in on the night.
Assuming KSI can make quick work of Swarmz and leave without a cut, he will move on to face 2-5 Mexican journeyman Luis Pineda in the main event of the evening. The Mexican has arrived in the UK on short notice, but should cause his opponent trouble with a more balanced fighting style.