KSI looked ripped as he weighed in at 180lb ahead of his two fights in one night against Swarmz and Luis Alcaraz Pineda.
YouTube star KSI - real name JJ Olatunji - will take to the ring in his second and third professional fights against Swarmz and Pineda at London's O2 arena on Saturday night. KSI hasn't fought since facing Logan Paul in a high-profile rematch back in 2019 which he won by split decision.
And he has shown off a remarkable body transformation in the build-up to the fight which he claimed has seen him lose around 30lb for the fight. He has now completed his new physique stepping on the scales 20lb lighter than Swarmz, and one pound heavier than Pineda.
KSI was set to make his return against Alex Wassabi in a bumper event after the American defeated his brother Deji back in February. However Wassabi withdrew from the event at short notice after suffering a "serious injury" which saw rapper Swarmz - real name Brendan Scott- step up to the plate after being contracted in case of a late pull-out.
Fans quickly moved to criticise KSI for the selection of his opponent Scott, who had been friends with the YouTube star in the past when recording a hit single 'Houdini' together. He then elected to make history and fight two fighters in one night which has only been done before by heavyweight George Foreman who took on five fighters.
His replacement opponent initially was chosen to be journeyman Ivan Nikolov, who was later found to have neo-Nazi tattoos printed on him. After removing Nikolov who was discovered to be a white supremacist after further research, from the card, KSI opted to face Pineda, who has a record of two victories and five defeats, in the final fight of the evening.
Will KSI win both fights on Saturday night? Let us know in the comments section below
A win for KSI will see him edge one step closer to a mega showdown with former opponent Paul's brother Jake who has already agreed to a winner-takes-all bout on social media. And he said: "The Nightmare is back. Three years I have had to watch these motherf****** fight in front of me and it is good to be back and show everyone why I am No.1. Are you not entertained ladies and gentlemen? F*** Jake Paul. F*** all these motherf******; round one KO, watch."