Liverpool featherweight Derry Mathews has signed a three-year contract with David Haye's Hayemaker Promotions.
Mathews first fight for his new team is a final eliminator for the British title against unbeaten Martin Lindsay in Sheffield on 20 September.
The former WBU world champion, 24, told BBC Radio Merseyside: "I want that British title.
"The deal is unbelievable and Hayemaker Promotions are going to bring big things for me."
As part of Mathews's deal, all of his fights under Hayemaker will be televised by Setanta Sports and he will fight on the undercard of some of David Hayes fights.
The Liverpudlian added those were key factors in his decision to sign with the new promotional company.
"He [Haye] has promised me that I'm going to be on his undercards.
"I believe he's going to be the undisputed heavyweight champion of the world.
"To sit in a room with him a couple of weeks ago and the deal he threw at me was something I couldn't refuse."
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