Justin Bieber
Justin Bieber

Canandian pop superstar Justin Bieber doesn't think American boxer Floyd Mayweather will knock out Ultimate Fighting Championship (UFC) cage fighter Conor McGregor. Bieber, 23, who shares quite a good rapport with Mayweather, 40, played down the chances of the American pugilist destroying McGregor in an epic bout, billed as the fight of the century on August 26 in Las Vegas.

Floyd Mayweather (left) and Conor McGregor
Floyd Mayweather (left) and Conor McGregor

Asked on whether he thinks Mayweather will knock McGregor out, Bieber told TMZ Sports yesterday: "I don't think so. I think it'll be a good fight, but I love Floyd and I look up to him."

Bieber had earlier even walked to the ring with Mayweather and rapper Lil Wayne when the pro fighter was set to face off against Marcos Maidana in May 2014 in Vegas.