Joyce was initially set to face former WBO world heavyweight champion, Joseph Parker. But the fight was put on hold after Parker's trainer Andy Lee declared himself unavailable for the fight. 

Instead, Joyce will now go head-to-head with Hammer, and he will be looking to produce an impressive display in the English capital to move a step closer to a world title shot. 

Here's everything you need to know about Joyce vs. Hammer.

When is Joyce vs. Hammer fight date, start time tonight

• Date: Saturday, July 2    
• Main card: 7 p.m. BST / 2 p.m. ET     
• Main event ringwalks (approx): 11 p.m. BST / 6 p.m. ET  

The main card is set to get underway at 7 p.m. BST / 2 p.m. ET, with the main event ringwalks fight scheduled for 11 p.m. BST / 6 p.m. ET. These timings could change due to the length of the undercard fights. 

What channel/stream is Joyce vs. Hammer on tonight?

• U.S.: ESPN+   
• UK: BT Sport   

The fight will be broadcast on BT Sport in the UK. In the U.S., the fight will air on ESPN+. 

Where is the Joyce vs. Hammer fight tonight?

The fight takes place at the OVO Arena, Wembley. 

Joe Joyce record and bio

• Nationality: Great Britain    
• Date of Birth: September 19, 1985
• Height: 6' 6"      
• Reach: 80"     
• Total Fights: 13   
• Record: 13-0 (12 KOs)  

Christian Hammer Record and Bio

• Nationality: Germany
• Date of Birth: September 27, 1987  
• Height: 6' 2.5"         
• Reach: 78"   
• Total Fights: 36
• Record: 27-9 (17 KOs)     

Joyce vs. Hammer fight card

• Joe Joyce vs. Christian Hammer; Heavyweight
• Jason Cunningham vs. Zolani Tete for Cunningham's Commonwealth super bantamweight title
• Mark Chamberlain vs. Marc Vidal; Lightweight
• Micky Burke vs. Serge Ambomo; Super welterweight
• Henry Turner vs. Jakub Laskowski; Super lightweight
• Tommy Fletcher vs. Darryl Sharp; Cruiserweight
• Arnold Obodai vs. TBA; Cruiserweight