Former British and Commonwealth heavyweight champion was involved in a heated altercation while working security at Wembley boxpark.
It is currently unknown what caused the argument to spill outside the front of Wembley boxpark, in the video two men are seen tussling with security, with one man wearing a bandana acting in a particularly aggressive manner.
As the man approached Francis pointing his finger, the former British heavyweight had no problem ending matters there and then, rendering the man unconscious with one right hand.
Francis called time on his career in 2006 finishing 23-24-1 with 12 knockouts, other than winning the British and Commonwealth titles Francis is most famous for fighting Mike Tyson at MEN arena in Manchester in 2000, a fight he lost by TKO in round two.