MIKE TYSON and Roy Jones Jr do battle in a stunning exhibition fight this weekend.
But who is the third man in the ring, referee Ray Corona?
Who is Ray Corona?
Ray Corona is a veteran boxing referee who is in his 20th year of officiating inside the squared circle.
Corona was born in California, USA.
He has refereed over 500 bouts usually in and around the Californian state.
The last world title fight he officiated was Billy Joe Saunders' win over Marcelo Coceres last November on the undercard of KSI vs Logan Paul, which took place at the Staples Center like Tyson vs Jones Jr.
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What are the rules of Tyson vs Jones?
Boxing legends Tyson and Jones Jr will fight over eight, two minute rounds.
The Californian State Commission have said, however, that they want the fighters to AVOID going for knockouts and will want the fight stopped if there is a cut.
It will be down to Corona whether he chooses to halt the proceedings or not.
There will be judges from boxing governing body the WBC scoring the fight remotely to give the winner the WBC Frontline Championship belt if it goes all eight rounds.
The WBC judges who will be scoring the fight but not from ringside are former WBC champs Christy Martin, Vinny Pazienza and Chad Dawson.
Who is on the Tyson vs Jones Jr undercard?
YouTuber Jake Paul leads the way on the four-fight card when he takes on ex-NBA star Nate Robinson.
KSI's trainer Viddal Riley has pulled out injured and has been replaced by Hasim Rahman Jr.
How can I watch Tyson vs Jones Jr?
BT Sport Box Office will be showing the card in the UK. With the event starting from 1am GMT.
BT are charging £19.95 for the card.
In the US, watch the show on Fite.TV and the Triller app.