Chelli claimed the British and Commonwealth 168lb belts in January with a unanimous decision win against Jack Cullen. 

Simpson is undefeated in his 14 fights as a professional and knocked out Dulla Mbabe in the fourth round of their fight in March.

Here's everything you need to know ahead of Chelli vs. Simpson.

Live on DAZN: Terence Crawford vs. Israil Madrimov on August 3. Click here for details.

When is the Chelli vs. Simpson fight tonight? Date, start time

• Date: Saturday, August 3 
• Time: 7 p.m. UK / 2 p.m. ET 
• Main event ringwalks (approx): 10 p.m. UK / 5 p.m. ET

The ringwalks for Chelli vs. Simpson are scheduled for 10 p.m. UK / 5 p.m. ET with the event set to begin at 7 p.m. UK / 2 p.m. ET. These timings are subject to change. 

What channel/stream is Chelli vs. Simpson tonight?

• U.S.: Peacock
• UK: Sky Sports

Fans in the U.S. can stream the fight on Peacock (click here for more information), while Sky Sports will broadcast the fight in the UK. 

Where is the Chelli vs. Simpson fight tonight?

The fight will take place at Oakwell Football Ground in Barnsley, England. 

Zak Chelli record and bio

• Nationality: British
• Date of birth: November 26, 1997
• Height: 6' 0"
• Reach: N/A  
• Total fights: 18  
• Record: 15-2-1 (7 KOs)

Callum Simpson record and bio

• Nationality: British
• Date of birth: October 16, 1996
• Height: N/A
• Reach: N/A
• Total fights: 14  
• Record: 14-0 (10 KOs)

Chelli vs. Simpson fight card

• Zak Chelli vs. Callum Simpson; For Chelli's British and Commonwealth super middleweight titles
• Caroline Dubois vs. Maira Moneo; Women's lightweight
• Stephen McKenna vs. Joe Laws; Light middleweight
• Connor Coyle vs. Kyle Lomotey; Middleweight
• Mauro Silva vs. Dale Arrowsmith; Middleweight
• Joel Kodua vs. TBA; Welterweight
• Billy Deniz vs. Khalid Graidia; Light heavyweight