Caleb Truax shocked a ring rusty James DeGale over the championship distance to rip the IBF super-middleweight title away from the Briton.
The massive underdog travelled to the UK to take on DeGale as what seemed to be a stepping stone for the ex-Olympic gold medallist to bigger things.
That didn’t prove to be the case as Truax recovered from a slow first two rounds to gain a foothold in the contest.
A massive fifth round was the turning point as DeGale was rocked badly and looked on his way to a stoppage loss.
DeGale recovered in patches and was given some rounds on sheer class as he attempted to fend off the constant walking forward of Truax.
The American took the victory 116-112 on two cards, whilst a third judge scored 114-114, the same as WBN, to give DeGale the benefit of the doubt.
Despite no rematch clause being in the contract, DeGale said afterwards he’d speak to Al Haymon in a bid to be granted one immediately.
In the co-feature, IBF featherweight champion Lee Selby remained so following what was a tense battle with Eduardo Ramirez at times.
The Welshman clearly had the better skills but was drawn into a war on occasions, tactics which would have cost him a small portion of the twelve rounds.
Although game, Ramirez – who came in overweight and could not pick up the title – just didn’t have the quality to upset Selby.
After the duration, judges came back with cards of 119-109, 118-110 and 116-112 to push towards an all-British clash with Josh Warrington.
Ringside for BoxNation / BT Sport duties, Warrington eyeballed Selby as he went through his post-fight interview and will be next up as the mandatory challenger.
Warrington stated he’d have no trouble accepting the fight in Wales but would prefer Elland Road in Leeds as the bigger ticket seller of the two.
On the undercard, Anthony Yarde became the first fighter to stop hardened former world title challenger with a superb performance.
Yarde, 26, looked every inch a future champion on Saturday’s evidence as he took apart Sjekloca, something no fighter has been able to do to the Montenegrin.
Down in the second and fourth rounds, Sjekloca was outclassed as Yarde claimed a fourteenth pro win with a thirteenth stoppage in round four
Heavyweight prospect Daniel Dubois dropped Dorian Darch four times on his way to yet another destructive win, his fourth in a row at the Copper Box Arena.
The 20 year-old dropped Darch in the first and looked on his way to another quick finish, although his opponent managed to see out the round.
Hell-bent on making sure none of his foes go past the second session, Darch was down three times in the second until Dubois was declared the victor.
The Londoner is now 6-0 and keeps his 100% record going into the New Year.
Prior to Dubois’ triumph, Joe Mullender also put Lee Churcher on the canvas four times before finally gaining the stoppage in the eleventh.
Mullender has now won two in a row since losing out to Lee Markham in May 2016 on will begin 2018 in good shape.
Young super-flyweight Harvey Horn began his pro career impressively with a third round victory over Denis Bartos, whilst Archie Sharp improved to 11-0 with an eight round decision win over Rafael Castillo.
In further action, welterweight Johnny Garton stopped Mihail Orlov in the tenth round of a scheduled twelve, whilst 140-pounder Sanjeev Sahota made it to a perfect by outscoring Ivan Godor over six.