BERLIN, (Reuters) – WBC heavyweight champion Vitali  Klitschko will go up against American Kevin Johnson in Berne,  Switzerland on Dec. 12 in what will be his third title defence  this year, he said yesterday.  

Ukrainian Klitschko, whose brother Vladimir holds the IBF,  IBO and WBO crowns, retained his WBC title with a 10th round TKO  over previously undefeated challenger Cristobal Arreola last  month.  

That victory was Klitschko’s third since returning to the  ring in 2008 following an injury-induced retirement in 2005.  

“I feel fully fit. I cannot wait to get back into the ring,”  Klitschko said in a statement.  

“Kevin Johnson is dangerous. He has already fought 23 times,  is undefeated and is technically superior to Arreola.”  

Klitschko, 38, has a record of 38-2, while undefeated  Johnson, 30, has 22 wins and a draw.