Ortiz beat Berto for the WBC Welterweight Championship by unanimous decision back in 2011. Ortiz would lose the title to Mayweather in his first championship defense five months later via a controversial knockout. 

MORE: Classic photos of Floyd Mayweather | Mayweather vs. Berto live blog | Odds, lines, picks 

Berto’s last loss came to Robert Guerrero in 2013, when the two competed for the vacant Interim WBC Welterweight Championship. Guerrero won the title, only to lose it to Mayweather in his next fight. 

Floyd Mayweather (48-0, 26 KO, 2-0 vs. common opponents)

Victor Ortiz — Sept. 17, 2011: Mayweather wins in 4 rounds by KO, wins WBC Welterweight title

Site: MGM Grand

Referee: Joe Cortez

Judges: Jerry Roth (30-27), Adalaide Byrd (30-27), Glenn Trowbridge (29-28)

Robert Guerrero — May 4, 2013: Mayweather wins in 12 rounds by UD

Site: MGM Grand

Referee: Robert Byrd

Judges: Jerry Roth (117-111), Dulane Ford (117-111), Julie Lederman (117-111)

Andre Berto (30-3, 23 KO, 0-2 vs common opponent)

Victor Ortiz — April 16, 2011: Ortiz wins in 12 rounds by unanimous decision, Berto loses WBC Welterweight title

Site: Foxwoods Resorts, Mashantucket, Conn.

Referee: Mike Ortega

Judges: Julie Lederman (111-114), Glenn Feldman (112-114), Clark Sammartino (110-115)

Robert Guerrero — Nov. 24, 2012: Guerrero wins in 12 rounds by unanimous decision, Guerrero wins interim WBA Welterweight title

Site: Citizens Business Bank Arena, Ontario, Calif. 

Referee: Lou Moret

Judges: Max DeLuca (110-116), Julie Lederman (110-116), Alejandro Rochin (110-116)