"Matchroom were always my first choice, but you have to weigh up all of your options.
"After really exciting discussions about the future, it was a no-brainer to go with them.
"There’s some huge fights to be made and my dreams have always been to sell out arenas, to bring back the Ricky Hatton days in Manchester.
"That’s what always gets me going, to have some good wars and good boxing fights. Watch this space - I’ll be coming for it all."
Hearn said: "This is a signing that I’m incredibly excited about.
"All of us at Matchroom truly believe that Pat Brown has it in him to become a star of British boxing.
"I’m confident that he can bring back the massive nights to Manchester. He’s an incredibly popular young man and has the ability to sell out arenas in Manchester and beyond in years to come."