Has anyone in history unified titles in the fight after winning their first title?

[CokeCider]

Just a thought. Has anyone been close?

[JFalu]

Mike Tyson won the WBC then the WBA his next fight. Then two fights later the IBF. Four fights later he claim the Ring title.

Note: Tyson won the WBC and WBA in back to back title fights twice in his career.
GOAT

[CokeCider]

Mike Tyson won the WBC then the WBA his next fight. Then two fights later the IBF. Four fights later he claim the Ring title.

Note: Tyson won the WBC and WBA in back to back title fights twice in his career.
GOAT

That's sick !

[Dirk Diggler UK]

Probably quite a few examples.

I was just watching his fight with Collazo earlier so it's fresh in my mind. Ricky Hatton beat Kostya Tyszu for his first real world title (IBF) and unified with Carlos Maussa (WBA) in his next fight.

[Dirk Diggler UK]

David Haye won the WBC and WBA Cruiserweight titles from Jean Marc Mormeck and unified against Enzo Maccarinelli (WBO) in his next fight

[Sugar Adam Ali]

Oscar won a 154 belt of Javier castellejo and then untied vs Vargas

[Sugar Adam Ali]

Morales beat famoso and Chavez in back to back fights for 130 belts

[Sugar Adam Ali]

Floyd beat zab Judah for ibf belt and then beat baldomir for the lineal and WBC title

[Sugar Adam Ali]

Mayorga beat Lewis for a welter title and then beat Forrest to unify

[king4oranges]

Mike Tyson won the WBC then the WBA his next fight. Then two fights later the IBF. Four fights later he claim the Ring title.

Note: Tyson won the WBC and WBA in back to back title fights twice in his career.
GOAT

My boy Khan who you all hate