Blockbuster world heavyweight fight: Morecambe's Tyson Fury agrees deal to face British rival Anthony Joshua

The two heavyweight world champions agreed terms in principle last year for the unification bout but have now put pen to paper after contracts were finalised.

The deal also includes a second fight and both occasions will be the biggest bouts British boxing history.

The first fight is expected to take place in June or July with Saudi Arabia in pole position to play host with both fighters set to earn £100million.

And the winner will be crowned the first undisputed heavyweight world champion since Lennox Lewis in 1999 after the WBO agreed to waive Joshua's mandatory responsibilities.

Negotiations will now continue over when and where the fight would take place with as many as eight countries throwing their hat into the ring.

Promoter Eddie Hearn told ESPN: "We'd like to get a site deal confirmed in the next month.

"We've already had approaches from eight or nine sites. The offers have come from multiple countries in the Middle East, from Asia, eastern Europe and America.

"This is the biggest fight in boxing and one of the biggest sporting events in the world," Hearn said. "It will be a major, major win for a country that wants to showcase itself."

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