Ruiz's reputation is founded on his upset victory over Anthony Joshua in 2019, and undermined by the slack performance later that year when he lost to Joshua in the rematch in Saudi Arabia.

Ruiz returned against Chris Arreola for a victory in May 2019, and has slimmed down noticeably in recent months.

Veteran Ortiz is a seasoned performance and last fought on New Year's Day when he stopped Charles Martin.

Here is everything you need to know about Andy Ruiz Jr. vs. Luis Ortiz.

When is Andy Ruiz Jr. vs. Luis Ortiz fight, date, start time

Date: Sunday, Sept. 4  
Main card: 9 p.m. ET / 2 a.m. GMT   
Main event ringwalks (approx): 12 a.m. ET / 5 a.m. GMT

The main card is set to get underway at 9 p.m. ET / 2 a.m. GMT with the main event ringwalks scheduled for 12 a.m. ET / 5 a.m. GMT. With live fight nights, these timings could change. 

What channel/stream is Ruiz vs. Ortiz?

U.S.: Fox Sports PPV (Price: $74.99) 
UK: FITE.TV

Fox Sports PPV will air the fight in the U.S. where fans will have to pay $74.99 to watch the fight. For the UK fans, the fight card is available on FITE.TV

Where is the Ruiz vs. Ortiz fight?

The fight takes place at the Crypto.com Arena in Los Angeles.

Andy Ruiz Jr. record and bio

• Nationality: American 
• Born: September 11, 1989
• Height: 6-0   
• Reach: 74 inches   
• Total Fights: 36   
• Record: 34-2 (22 KOs)  

Luis Ortiz record and bio

• Nationality: Cuban
• Date of Birth: March 29, 1979
• Height: 6-4   
• Reach: 78 inches  
• Total Fights: 37
• Record: 33-2-2 (28 KOs)

Andy Ruiz Jr. vs. Luis Ortiz fight card

(Listed in reverse running order: Ruiz Jr. vs. Ortiz, listed at the top, will go on last)

• Andy Ruiz Jr. vs. Luis Ortiz; WBC Heavyweight Eliminator
• Isaac Cruz vs. Eduardo Ramirez; WBC Lightweight Eliminator
• Abner Mares vs. Miguel Flores; Lightweights
• Jose Valenzuela vs. Jezreel Corrales; Lightweights