Mexican Saul 'Canelo' Alvarez and Kazakhstan's Gennady Golovkin have reportedly agreed terms for a third fight.
It has been tentatively scheduled for 12 September at AT&T Stadium near Dallas according to The Athletic.
Four-division champion Alvarez was scheduled to face off against England's Billy Joe Saunders in a super middleweight unification bout on 2 May in Las Vegas but that fight is expected to be postponed due to the coronavirus pandemic.
Alvarez (53-1-2, 36 KOs) is still expected to fight Saunders (29-0, 14 KOs) before meeting Golovkin for the third time, the Athletic website said, citing multiple sources.
After battling to a disputed draw in their first bout, four-division champion Alvarez defeated IBF and IBO middleweight champion Golovkin in their rematch on a points decision that many thought could have gone the other way.
It marked the first career loss for Golovkin (40-1, 35 KOs).