Wednesday 23 March 2016 15:01, UK
Kell Brook is looking to make a statement against Kevin Bizier on Saturday, but where does his unbeaten run rank in world boxing?
The 29-year-old defends his IBF world welterweight crown against mandatory challenger Bizier (25-2-KO17) - live on Sky Sports 1 - knowing he can extend his record to 36-0 with victory.
So with pound-for-pound kings such as Roman Gonzalez and Gennady Golovkin also boasting flawless professional careers to date, where does Brook fit in?
The WBC world flyweight champion hails from Nicaragua and is considered by many as the No 1 pound-for-pound boxer in the world with a knockout ratio that belies his size.
A world champion at both minimumweight and light-flyweight, the 29-year-old will make the fourth defence of the belt he currently holds when he faces McWilliam Arroyo on April 23 on the undercard of Gennady Golovkin v Dominic Wade.
An unbeaten Thai yet to fight outside his homeland, Menayothin has stopped his last four opponents and is considered the leading light of the minimumweight division.
Menayothin, 30, was most recently in action on March 3 when he stopped Go Odaira to defend his WBC world title.
Brazilian cruiserweight Souza hails from Sao Paulo and has fought outside Brazil just twice - making his US debut in April 2015 when he stopped Curtis Reed inside three rounds.
At the age of 31, Souza has stopped all of his opponents bar one - Hierro Salcedo was disqualified with the South American title on the line back in 2010.
A man who needs little introduction, the gregarious WBC world heavyweight champion is about to take on Alexander Povetkin in Russia as he continues to hunt unification bouts with the likes of Tyson Fury.
The fighting pride of Alabama will travel to Russia to make the third defence of the belt he won from Bermane Stiverne in January 2015 and is becoming one of the world's most recognisable boxers.
A young fighter with the world - or at least the Thai boxing world - seemingly at his feet, Chitpattana has racked up a hugely impressive professional record given that he's just 22 years old.
Having made his debut at the age of just 17, Chitpattana (also known as CP Freshmart in the ring) is accumulating a significant following to add to his fellow residents of Roi-Et.
The IBF world welterweight champion is open over his desire to face Amir Khan one day but for the meantime, he's ploughing through his mandatory challengers.
Brook is often touted as the most gifted of Britain's flourishing crop of boxers and can take another step towards big-name fights by dispatching Bizier in style on Saturday night.
Aside from their compatriot Wilder, Americans seem to favour middleweight Golovkin above all right now. The heavy-handed Kazakh is a box office smash Stateside and showed why in his most recent bout; punishing then-IBF champion David Lemieux over eight rounds.
Golovkin, 33, defends his world titles against Dominic Wade on April 23 and is already looking ahead to facing the likes of WBC champion Saul 'Canelo' Alvarez and WBO holder Billy Joe Saunders.
A young and towering Mexican super-middleweight, Ramirez is currently preparing for his first world title shot. On April 9, he'll take on WBO champion Arthur Abraham under the bright lights of Las Vegas.
Despite his tender age of 24, 'Zurdo' is unlikely to be fazed by the occasion having made his US debut back in 2013 and having fought there six more times since.
Another up-and-coming Thai fighter causing a stir, Por Chokchai has taken up residence in the country's capital of Bangkok and has been exciting fans with his clinical finishing.
Although yet to get his hands on a world title, Chokchai has stopped all 10 of his most recent opponents inside the distance and is knocking on the door for world flyweight honours.
Kratingdaenggym is big for a Thai boxer and campaigns at welterweight. Another yet to fight abroad, the 24-year-old was seen most recently when comfortably outpointing Kazakh Alexandr Zhuravskiy.
The man from Buriram picked up a version of the PABA welterweight title in just his sixth professional fight and has since cemented his reputation by graduating to the full version and making 19 defences of it.
Garcia famously produced an emphatic stoppage of Amir Khan in July 2012 - unifying world super-lightweight titles in the process.
Now campaigning as a welterweight, the 28-year-old from Philadelphia snatched the world WBC title by comfortably outpointing Robert Guerrero in January.
Manchester's WBO world lightweight champion took another significant step in his career when he successfully defended his belt by beating Derry Mathews on points in March.
After picking up the European crown, Flanagan graduated to world level and took the title through an injury to Jose Zepeda - but his first two defences have left little doubt as to his quality.
Brook v Bizier is part of a stellar night of boxing in Sheffield that includes Luke Campbell v Gary Sykes and David Allen v Jason Gavern.
