Joshua to fight Pulev at Tottenham stadium on June 20

FILE PHOTO: Boxing - Anthony Joshua poses with the IBF, WBA, WBO & IBO World Heavyweight belts after winning his title fight against Andy Ruiz Jr - Al Faisaliah Tower, Riyadh, Saudi Arabia - December 8, 2019 Anthony Joshua poses with the belts Action Images via Reuters/Andrew Couldridge/File Photo

World heavyweight champion Anthony Joshua will face Bulgarian Kubrat Pulev, the IBF's mandatory challenger, at Tottenham Hotspur's 62,000-seater stadium on June 20, Pulev said on Monday.

"The contract is already officially signed," the 38-year-old former European amateur super-heavyweight champion Pulev said on his Facebook page. "I am happy to be able to show the world how strong I am."

Briton Joshua, 30, defeated Mexican-American Andy Ruiz Jr. in a December rematch in Saudi Arabia to win back his IBF, WBA, WBO and IBO world titles.

FILE PHOTO: Boxing - European boxing heavyweight championship fight - Hamburg, Germany - 7/5/16 -Bulgaria's Kubrat Pulev celebrates after his fight against England's Dereck Chisora REUTERS/Fabian Bimmer

Known as "The Cobra", Pulev challenged for the IBF world heavyweight title in 2014, losing to Wladimir Klitschko in Hamburg on a fifth-round knockout.

Joshua last fought in London in September, 2018 when he beat Alexander Povetkin at Wembley Stadium.

(Reporting by Angel Krasimirov, editing by Ed Osmond)