Last night, or at a silly time in the morning for those of us this side of the Atlantic, Daniel Jacobs took on the seemingly unstoppable Gennady Golovkin inside Madison Square Gardens and the American managed something no man has done before.
Before last night GGG was unbeaten in his professional career as he put his WBA (Super), WBC and IBO middleweight titles on the line against Jacobs. The Kazakhstani's IBF title should also have been on the line but the American decided against the extra weigh-in that the IBF have.
Prior to the bout Jacobs played respect to his opponent and the man considered one of the most destructive in the ring saying, "He's the number one guy. He has the belts and the impressive resume. I have a good respect where respect is due."
But by the end of the fight it was the 30 year old New Yorker who had gained all the respect. Golovkin was the one who won the fight, in controversial circumstances, but Jacobs became the first man to take the champion to 12 rounds!
The two knockout specialists took each other the distance with GGG coming out on top, winning the bout on all three cards 115-112 115-112 114-113. However the decision was not what many looking on had thought it would be.
Despite knocking Jacobs down in the fourth round, to win that round 10-8, many thought that the older fighter had not won the fight. Many were convinced that the home fighter was about to inflict the first defeat on GGG's professional career.
Jacobs himself was among those convinced he should have had his arm raised.
Jacobs now has a still impressive record of 32-2 with 29 of his wins coming by way of knockout and before last night had ended his previous 12 fights inside the distance, a run that stretched back to his last defeat against Dmitry Pirog in 2010.
GGG's record of 23 stoppages in a row, including his 17 title defences, has now come to an end. The previous times he's been taken the distance were in eight round fights.
Do you think the two men should have a rematch?