WATCH: YouTube star KSI floored by Badou Jack in sparring at Mayweather Gym

Typography

When U.K.-based YouTube star KSI was in need of boxing expertise and guidance, he turned to two-time world champion Badou Jack "The Ripper," embedding with Team Jack and trainer Floyd Mayweather Sr. for a week-long training regimen at Mayweather Boxing Club in Las Vegas.

Jack, who last fought on August 26, 2017 and knocked out Nathan Cleverly on the televised undercard of the record-breaking Mayweather vs. McGregor fight card at T-Mobile Arena in Las Vegas was back in the gym preparing for his upcoming bout.

On May 19, Jack will face Adonis Stevenson at the Bell Centre in Montreal for a shot at a third world title.