Wladimir Klitschko to fight undefeated Francesco Pianeta in May

In his most recent fight, Wladimir Klitschko defeated Mariusz Wach (left) in Nov. 2012.

AP

FRANKFURT, Germany (AP) - Wladimir Klitschko will defend his four heavyweight titles against Francesco Pianeta in May.

Klitschko's management says the fight will take place on May 4 in Mannhein, Germany. Klitschko holds the IBF, IBO, WBA and WBO heavyweight belts.

The 28-year-old Pianeta was born in Italy but has lived in Germany since he was 6.

Pianeta (28-0-1, 15 KOs) was briefly Klitschko's sparring partner last year. Klitschko is 59-3 with 51 KOs.

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