Peterborough owner Darragh MacAnthony has revealed they paid just £1 to sign West Brom attacker Adil Nabi.

But Albion insist it was merely a formality to ensure they received the agreed percentage if Nabi is sold on.

Albion's legal counsel Simon Carrington told the Express & Star: “Most contracts only need to contain two elements to be legally valid.

“All parties must be in agreement after an offer has been made by one party and accepted by the other.

“Something of value must be exchanged - such as cash, services, or goods or a promise to exchange such an item, for something else of value.

"The £1 negates any uncertainty that the contract may or may not have come into being at the date it is signed, notwithstanding whether there is any future payment made by Peterborough should Adil be sold on."