Amir Khan and Kell Brook will face each other in a battle between two British former world champions on February 19.
The pair will meet in the ring at the Manchester Arena after a bout was finally agreed following years of fruitless talks.
Brook, who at 35 is the senior man of the two by just seven months, suffered a fourth-round loss to America's Terence Crawford in his last bout a year ago.
Former WBA light-welterweight champion Khan's last outing, back in July 2019, ended in a points decision triumph over Billy Dib of Australia.
Khan, who has also held the IBF title, has won 34 of his 39 professional fights, 21 of those by knockout, while ex-IBF Welterweight champion Brook has 39 wins and 27 knockouts from 42 bouts.