Frank Warren has always aimed to deliver quality action on his shows and there have been plenty of occasions when the end results have been shocking.
The Hall of Fame promoter has seen his fair share of upsets on his shows, and they have included his fighters being on both ends of the final outcome.
Here, DAZN News looks at some of the biggest upsets to have taken place on events promoted by Warren.
Breidis Prescott arrived in the U.K. in 2008 with a puncher’s record. He left with an incredible victory as he became the first person to defeat Amir Khan after halting the Bolton man in Manchester in one round.
The heavy-handed Columbian made an immediate impact in the fight as he dropped Khan in the opening seconds and although Khan got up, the bout was quickly over as a follow up attack stunned those in attendance.
Frank Warren had hired West Ham’s iconic Upton Park as he looked to deliver a world title for Kevin Mitchell, a London star who had been fancied to reach the top of the sport since his amateur days.
Michael Katsidis had other ideas though as he produced a relentless performance in 2010 that saw him possess too much firepower for the local favourite who was overwhelmed in three rounds.
Ricky Burns was a huge underdog despite having home advantage against Roman Martinez when the Puerto Rican star travelled to Scotland in 2010.
Despite being dropped in the opening session, Burns rallied superbly to become world champion on the scorecards following a pulsating contest.
Jeff Lacy was seen as the future of American boxing when he arrived in Manchester in 2006 in an attempt to unify the super-middleweight division against Joe Calzaghe.
The unbeaten Welshman was a significant underdog, but he delivered the best performance of his career to win almost every second of the fight as he triumphed after 12 masterful rounds.
Despite having the vocal crowd of Manchester behind him in 2005, not many believed Ricky Hatton could dethrone Kostya Tszyu as world super-lightweight champion.
Hatton fought like a man possessed as he delivered the best performance of his career to give British boxing one of its greatest ever nights.
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