Roach vs Zepeda, elite MMA and world-class Muay Thai: The biggest fights this weekend

Lamont Roach and William Zepeda battle for the vacant WBC lightweight world title in one of boxing's biggest fights of the summer, Pierce O'Leary defends his IBO super lightweight championship against fellow Briton Mark Chamberlain, while BRAVE Combat Federation and Rajadamnern World Series deliver top-class MMA and Muay Thai action.

Here's everything to watch this weekend.

Lamont Roach vs William Zepeda

(Golden Boy/Cris Esqueda)

The headline event of the weekend sees Lamont Roach and William Zepeda collide for the vacant WBC lightweight world championship.

Roach has established himself among boxing's elite after a string of impressive performances, while the relentless Zepeda will be looking to become a world champion for the first time. With one of boxing's deepest divisions waiting for its next leading name, victory could open the door to blockbuster fights later this year.

Pierce O'Leary vs Mark Chamberlain

Queensberry/Leigh Dawney

Before attention turns to Las Vegas, Dublin hosts another compelling world title contest.

Ireland's Pierce O'Leary puts his IBO super lightweight championship on the line against Britain's Mark Chamberlain in what promises to be an explosive domestic rivalry. Both men possess genuine knockout power and know victory could move them a step closer to even bigger opportunities on the world stage.

BRAVE Combat Federation returns

Another stacked night of mixed martial arts takes place at BRAVE CF 107 as the promotion returns to Burgas, Bulgaria with a card featuring established contenders and rising international talent.

The main event sees Bulgaria's Kaloyan Kolev defend home soil against Dutch-Moroccan contender Salim El Ouassaidi in a light heavyweight clash that could have major implications in the division. Kolev enters with just one defeat on his professional record, while El Ouassaidi steps in looking to spoil the homecoming and announce himself as a genuine title contender.

Elsewhere, Muhammad Idrisov meets late replacement Alinson Ochoa in a featherweight contest, Mohamed Alsameea faces Miran Ramani at bantamweight, while hometown favourite Luthando Biko looks to continue his rise against Viktor Pešta in one of the night's most intriguing heavyweight bouts.

Watch BRAVE CF live and for free on DAZN.

RWS crowns an undisputed Muay Thai champion

Anusak Laowilas/NurPhoto via Getty Images

Few striking promotions produce action quite like Rajadamnern World Series, and this weekend another chapter of its history will be written.

Petchdej defends his Rajadamnern Stadium Super Flyweight World Championship against Phettechin in a fight to crown the undisputed king of the division.

The champion enters the contest having recorded five knockdowns in five RWS appearances, while challenger Phettechin has won seven of his last eight fights and becomes the first representative from Bangsaen Fight Club to challenge for a Rajadamnern Stadium world title.

With two of Thailand's elite meeting on one of Muay Thai's biggest stages, fans can expect another unforgettable night of world-class striking.

Watch RWS Muay Thai live and for free on DAZN.

When are the fights?

• Rajadamnern World Series Saturday, August 1 12:00 BST
• BRAVE Combat Federation 107 Saturday, August 1 17:00 BST
• Pierce O'Leary vs Mark Chamberlain Saturday, August 1 19:00 BST
• Lamont Roach vs William Zepeda Sunday, August 2 01:00 BST