World heavyweight champion Vladimir Klitschko will defend his WBO, IBF and WBA belts against Poland's Mariusz Wach in Hamburg on November 10, it has been announced.
The 36-year-old Klitschko, who is based in Hamburg, faces his 23rd world title fight against the undefeated Wach, four months after the champion's sixth-round knock-out of US boxer Tony Thompson in Basel.
"It is always something special to box in Hamburg," said Klitschko.
"This fight will also be special because I have never fought against a boxer who is bigger than me and has a longer reach."
At 202cm tall with a reach of 2.08m, Krakow-born Wach, who is based in the United States, is four centimetres taller than Klitschko with a reach two centimetres longer.
Klitschko last fought in Hamburg on July 2, 2011, when he earned a clear points win over Britain's David Haye to add the WBA belt to his collection.