WBO lightweight champion Terry Flanagan (32-0, 13 KOs) will make his fifth title defence when he faces Petr Petrov (38-4-2, 19 KOs) on April 8 at the Manchester Arena.
The Manchester man is coming off a eighth-round stoppage over Puerto Rican Orlando Cruz last November.
Flanagan, who won the world title in July 2015 when he defeated Jose Zepeda, who could not continue after the second round due to a dislocated shoulder, has also successfully defended the WBO belt against Diego Magdaleno, Derry…