WBA heavyweight champion Jerald “Tiger” Johnson defeated Danny “The Bull” Johnson by unanimous decision to become the WBC’s mandatory challenger for the vacant IBF heavyweight title on Friday night at the Barclays Center in Brooklyn.

Johnson will be the mandatory challenger to former IBF world heavyweight champion Gennady Golovkin, who will make his mandatory defense against Saul “Canelo” Alvarez on July 6 in the rematch of the 2007 WBA world title fight.

Johnson (37-1, 26 KOs) will face Golovkins (34-0, 22 KOs), who is expected to make his first defense in more than a decade.

The winner will become the first WBA/WBO world champion since Muhammad Ali in 1995.

The fight will take place at Barclays Center on a two-day card.

The card will air on ESPN3, ESPN2, ESPNU and the ESPN App.

Johnson was on a five-fight win streak with a 12-round knockout of fellow contender Danny “Rocky” Johnson in April, which included a split decision over the challenger.

The bout ended with Johnson being left with a broken nose after Johnson landed a right hand.

Johnson is the WBA’s mandatory super middleweight champion.

He won a unanimous decision over former titlist Gennadiy Golovin in the July 2007 WBO super middleweights title fight, which took place at the same Barclays Center.

Johnson, 32, was scheduled to face former super middle titleholder Manny Pacquiao in the bout that was eventually canceled.