All news on the topic: World champions

Former two-weight world champion McGregor announced his return to the UFC over the weekend, confirming that he will fight ex-Bellator champion Chandler in his comeback fight

The former world heavyweight champion is keen to help future fighters receive healthcare from promoters after already netting tens of millions during his own career

Four-time kickboxing world champion Tate was arrested in Romania at the end of last year on suspicion of organised crime and human trafficking along with his brother Tristan

Former two-weight world champion McGregor has been told that he "chickened out" of fighting ex-lightweight champion Charles Oliveira as he prepares for his return to action

The elder Fury has declared that Tommy will put an end to his unbeaten boxing run, and Paul is willing to make a bet meaning the end of his career if the result goes the other way

The world No.5 was controversially left out of the Premier League Darts line-up as Chris Dobey was announced as the eighth pick for the 17-week series which starts on Thursday

"When I do finally stop I’d love to show what you can do with hard work and grafting. I have my coaching licence and would love to go down that route and give back, particularly to British athletes"

Former two-weight world champion McGregor has won just once since 2016, but due to his fame and influence in the sport could always be just one fight from a title bout

Kyle Smaine was pronounced dead on Sunday after the former world champion freestyle skier's family confirmed he and an unnamed Austrian were hit by an avalanche in Japan

Jake Paul went face to face with Tommy Fury in the ring on Saturday night to promote their fight next month and the Gypsy King had some words for his brother's bitter rival backstage

Lewis Hamilton has seven Formula 1 world championships to his name, but after two years without adding to his tally, the Englishman fears he many never win another again

Sebastian Vettel is competing in the Race of Champions this weekend – his first racing appearance since ending the F1 career he worked so hard to earn as a youngster

Exclusive: Double Olympic champion heaps praise on former rugby player for becoming only Britain's second ever male world champion

Former two-weight world champion McGregor will have been out of action for more than two years when he returns to the octagon later this year, and has been warned about the dangers of his comeback

YouTuber-turned-boxer Paul has finally inked a deal to fight Fury in Riyadh, Saudi Arabia next month and wants to up the stakes beyond their massive payouts

Kristan Bromley, Britain's last male world skeleton champion, hails performance of 25-year old who leads by more than a second at halfway point in St Moritz

World super-lightweight champion Josh Taylor was due to face Jack Catterall in Glasgow on March 4, but has pushed for the bout to be moved back due to an injury to his foot

Former lightweight title challenger and interim champion Poirier could be on his way up to welterweight after being called out for a fight by Rafael Dos Anjos

The former undisputed heavyweight world champion served three years in prison after being convicted of rape in 1992 and now faces a lawsuit which dates back to the 1990s

Former flyweight world champion Deiveson Figueiredo could face half-a-year out of the octagon after being hit with a medical suspension after his loss to Brandon Moreno on Saturday

An inmate in a Bahrain prison has called on Lewis Hamilton to continue his protests against human rights abuses, amid FIA boss Mohammed Ben Sulayem's call for drivers to stop making political statements

Fury has expressed interest in facing UFC heavyweight champion Ngannou in a cage fight under standard boxing rules, where the pair would wear 4oz gloves and Mike Tyson would act as referee

Smith knocked out Eubank Jr in the fourth round of their pay-per-view grudge match on Saturday night, but they had already agreed to a rematch clause prior to meeting

The undisputed heavyweight title clash between Usyk and Fury appears to be edging closer to an April date, with the pair now both engaged in social media trash talk

Floyd Mayweather will take on Aaron Chalmers, best known for his career as a reality TV star and a brief MMA run in Bellator, in the new main event of his London boxing event