Tyson Fury vs Deontay Wilder 3 undercard: Robert Helenius vs Adam Kownacki, Efe Ajagba and Edgar Berlanga in action

Get set for four gargantuan heavyweight fights in one historic night on BT Sport Box Office.

The highly-anticipated third fight between WBC and lineal heavyweight world champion Tyson Fury and former heavyweight champ Deontay Wilder will be supported by three unmissable blockbuster showdowns in what is sure to be an enthralling evening of fight action.

Tyson Fury vs Deontay Wilder: Who's on the undercard?

Robert Helenius vs Adam Kownacki

In just his second stateside outing, Helenius (30-3, 19 KOs) shocked the crowd at Barclays Center by handing Kownacki the first loss of his career via a fourth-round TKO.

Born in Sweden and fighting out of Mariehamn, Finland, Helenius established himself as one of Europe’s top heavyweights by dispatching Erkan Teper in September 2018 to move up the rankings.

Prior to dropping his U.S. debut to Gerald Washington in 2019, the 37-year-old had won six of his last seven fights, with his lone blemish coming against Dillian Whyte.

“I’m looking forward to repeating my first performance against Kownacki on July 24,” said Helenius.

“Boxing fans can expect another incredible fight with my hand raised in victory once again.

"All of Finland will be behind me when I show the world why I am most deserving of a world title fight. My only goal is to be world champion and unfortunately for Adam he stands in my way.”

Kownacki (20-1, 15 KOs) will be seeking revenge for the first loss of his career when he rematches Helenius on October 9.

The 31-year-old Kownacki, who was born in Lomza, Poland and moved to Brooklyn when he was seven, is noted for his tenacity and had been progressing towards a world title shot with knockouts in five of his last seven fights prior to the March 2020 defeat to Helenius.

Kownacki owns victories over former world champion Charles Martin and former title challengers Gerald Washington and Chris Arreola.

His August 2019 battle against Arreola set CompuBox records for heavyweights in combined power punches thrown and landed.

“I’m very excited to be back in the ring,” said Kownacki. “The pandemic made things hard for everyone, but things are getting back to normal. Being a part of an all-heavyweight pay-per-view like this feels great, and it’s a great thing for fans of our sport.

"This pay-per-view will be action-packed from top to bottom. I can’t wait to get my revenge against Robert Helenius. It’s been a long year waiting for the rematch, but I’ll be getting a victory on July 24. I feel like things will get back to normal and I will prove that I am one of the top heavyweights in the world.”

Efe Ajagba vs Frank Sanchez

This co-feature bout sees two knockout specialists go toe-to-toe in a fight that is sure to deliver fireworks.

Ajagba (15-0, 12 KOs) and Sanchez (18-0, 13 KOs) are both undefeated in their careers thus far but an 0's going to have to go when these two lock horns in Las Vegas.

Sanchez has defeated the likes of Nagy Aguiler, Joey Dawejko, Brian Howard and Julian Fernandez since turning amateur in 2017, but Ajagba represents his toughest test to date.

“I am excited to make my case as the top heavyweight title contender on the best pay-per-view card of the year,” said Sánchez. “I look forward to fighting Efe Ajagba and coming out victorious. Boxing fans want to see the best fight the best. People say Efe Ajagba is avoided, and that’s exactly why I chose to fight him. Fans can expect a great fight between two undefeated heavyweights July 24.”

Ajagba comes with Olympic pedigree having competed at the 2016 Rio games and at 6 foot 6 inches he boasts devastating knockout power to hurt anyone.

“I am honored to be fighting on the Fury-Wilder III PPV as the co-main event,” said Ajagba. “I have been patiently waiting for this opportunity to showcase my skills.

"My fans can expect to see more jabs, head movement, footwork and power in both hands against Frank Sánchez. October 9 is going to be a special night for ‘The One and Only’ Efe Ajagba.”

Edgar Berlanga vs Marcelo Esteban Coceres

Rising super-middleweight star Edgar Berlanga will look to put on another show as he faces Marcelo Esteban Coceres, a one-time opponent of Billy Joe Saunders, on the undercard this Saturday night.

A devastating knockout puncher, Berlanga registered an incredible 16-fight streak of first round stoppages before coming up against Demond Nicholson last time out.

Nicholson, a wily operator with 20 knockouts of his own to his name, endured the full eight rounds against Berlanga, who believes he will start a new streak of stoppages against Coceres this weekend.

“I always said you got a little weight on your shoulders because of the first-round knockout thing. Now, it’s out of the way, we ended the streak. I’m happy I went the distance and I showed that I have power in the later rounds," the 24-year-old said.

“Now I got those rounds in, I’m not looking to go rounds October 9th. No scorecards October 9th, or December 11th. I’m looking to start the streak over.”

Jared Anderson vs Vladimir Tereshkin

Top Rank's 21-year-old heavyweight prospect Jared Anderson as “The Real Big Baby” takes up a step up in class against undefeated Russian contender Vladimir Tereshkin in one of the other featured bouts of the evening.

Anderson was Fury’s primary sparring partner for the Wilder rematch and will serve in the same capacity for the trilogy bout.

The 21-year-old has won all nine of his fights by knockout since turning professional two years ago, a streak that also included five first-round stoppages.

Tereshkin (22-0-1, 12 KOs) a 6 foot 6 inch southpaw, is a 14-year professional who has won 14 consecutive fights since the lone draw on his ledger.

Watch Tyson Fury vs Deontay Wilder 3 exclusively live on BT Sport Box Office HD from midnight on Saturday 9 October. Click here for more information on how to buy this unmissable event.