ADONIS STEVENSON has laughed off a challenge from WBO titlist Sergey Kovalev as he prepares for the third defence of his WBC crown against Andrzej Fonfara on May 24 live on BoxNation.

Adonis Stevenson 2

Responding to a challenge laid down by the Main Events Twitter account, allegedly run by Kovalev's promoter Kathy Duva, Stevenson accused the Russian-born fighter of using his success to promote himself.

"I find that funny," Stevenson said at the press conference announcing the bout.

"Kovalev is using my name to try to boost his popularity because at the international level, his name doesn't sell."

Stevenson is the betting favourite to beat Poland's Fonfara when the two meet at the Bell Centre, Montreal on May 24. The 36-year-old has a 23-1 record and in 2013 took four stoppage wins, including lop-sided knockouts over Chad Dawson, Tavoris Cloud and Tony Bellew.