Sugar Ray Robinson KOs Carl Bobo Olson This Day May 18, 1956 and retains the middleweight crown
- Sugar Ray Robinson 159½ lbs
- Bobo Olson 160 lbs
- KO at 2:51 in round 4 of 15
- Location: Wrigley Field, Los Angeles, California, USA
- Referee: Mushy Callahan
- Judge: Frankie Van
- Judge: Tommy Hart
- World Middleweight Championship (1st defense of 3rd reign by Robinson)
A crowd of 20,083 paid a California record $228,500 to see the fight in Wrigley Field. The previous record was $196,720 for the 1955 fight between World Heavyweight Champion Rocky Marciano and challenger Don Cockell.
Each fighter received 30% of the $196,982 net gate, plus 30% of the $100,000 in TV rights. The total was $89,094.60.
Paydays for both fighters were held up by legal action. Olson’s estranged wife obtained a court order to tie up his share, and the federal government slapped an income tax lien against Robinson’s share.
Robinson put Olson down for the count with a left hook to the chin in the fourth round