Luke Campbell will fight Jorge Linares for the WBA and WBC lightweight belts in Los Angeles on September 23.
The 2012 Olympic champion has signed up for the toughest test of his professional career against the three-division champion from Venezuela.
Linares is best known to British fight fans for beating Manchester's Anthony Crolla on two separate occasions.
"It's an honour to be fighting Jorge Linares for the WBA World title, WBC Diamond and Ring Magazine titles in one of the biggest fights in the division," Hull southpaw Campbell said.
"I've worked my way from Olympic champion to the number one spot in the WBA and WBC rankings, and I feel now is the time to take my chance."
Linares, a three-division world champion of Barinas, Venezuela, who has captured titles in the featherweight, super featherweight and lightweight divisions, said: "I know Luke Campbell is a tough competitor with an incredible amateur and professional background, but I am confident that I will emerge victorious on September 23.”
Linares has a 42-3-0 record, with Campbell a 17-1-0 one.
