McGregor returns as UFC 329 fight week opens

International Fight Week is here, and the entire news cycle bends toward Conor McGregor's first walk to the Octagon in five years against Max Holloway. Around the main event, the UFC locked in a backup fighter, completed the card on six days' notice, and the fallout from Alex Pereira's White House loss kept referee Herb Dean in the crosshairs. Away from Las Vegas, the sport kept turning with a fresh 205-pound booking and sobering fighter news.

McGregor-Holloway 2 headlines UFC 329 as fight week begins

Conor McGregor (22-6) returns from a five-year layoff to rematch Max Holloway (27-9) at welterweight in Saturday's UFC 329 main event at T-Mobile Arena, 13 years after McGregor won their 2013 featherweight bout by decision. McGregor last fought in 2021, breaking his leg against Dustin Poirier, while Holloway is coming off a decision loss to Charles Oliveira that cost him the BMF title. The UFC released its Countdown episode previewing the five-round fight, and analysts including Darren Till flagged McGregor's long inactivity as the biggest question mark.

Why it matters: It is the biggest draw of the year and likely one of McGregor's final two fights under contract, but at nearly 38 and winless since 2020 he is a live underdog against a top-five opponent, and the result reshapes the top of two divisions' star power.

Ruffy named backup for McGregor-Holloway main event

Lightweight contender Mauricio Ruffy (14-2) confirmed he will serve as the official backup for the UFC 329 main event, traveling to Las Vegas and weighing in Friday in case McGregor or Holloway withdraws. Ruffy, fresh off a first-round knockout of Michael Chandler at UFC White House, weighed roughly 185.6 pounds and would need to cut about 14 pounds to make the non-title welterweight limit. The UFC's precaution nods to McGregor's 2024 withdrawal from a Chandler bout over a broken toe.

Why it matters: A designated backup underscores how much the promotion is protecting its marquee International Fight Week headliner, and gives a surging contender a lottery ticket into a superstar fight.

Herb Dean officiating draws mounting fighter criticism after Pereira loss

Charles Oliveira became the latest fighter to question referee Herb Dean, saying Dean should have stepped in over illegal back-of-the-head shots during Ciryl Gane's TKO of Alex Pereira at UFC White House, though Oliveira stopped short of Pereira's call to bar Dean from his fights. Henry Cejudo called the idea of Dean as the officiating gold standard a 'joke,' also citing Dean's non-action in the Michel Pereira–Shara Magomedov bout in Baku. Veteran referee John McCarthy defended Dean while arguing Pereira's continued social-media campaign is damaging his own stoic image.

Why it matters: A wave of high-profile complaints is turning individual controversies into a broader accountability debate for UFC officiating and the commissions that oversee it.

Pimblett-Saint Denis co-main carries lightweight stakes

Paddy Pimblett (23-4) meets Benoit Saint Denis (17-3, 1 NC) in the UFC 329 co-main event, both looking to climb the lightweight ladder. Pimblett is rebounding from a January decision loss to Justin Gaethje that snapped a nine-fight streak, while Saint Denis rides a four-fight run capped by a February stoppage of Dan Hooker. Coach Din Thomas and Darren Till both backed Pimblett, citing his durability and recovery ability against the aggressive but defensively suspect Frenchman.

Why it matters: With Gaethje now champion and Ilia Topuria lurking, the winner slots back into a crowded lightweight title picture on the sport's biggest card of the summer.

Basharat-Garza booked on six days' notice to complete UFC 329

UFC newcomer John Garza (6-1) stepped in on less than a week's notice to face unbeaten bantamweight Farid Basharat (15-0) at UFC 329, after Ethyn Ewing withdrew with a 'detrimental injury,' rounding the card out to 14 fights. Basharat revealed he is fighting on the final bout of his current UFC deal and will be a free agent afterward, calling the situation 'a gamble.' He pointed to brother Javid Basharat, who went 4-2-1 but was not re-signed, as a cautionary tale about winning not always being enough.

Why it matters: The scramble shows how thin the margins are for roster fighters, where a 6-0 UFC record still doesn't guarantee a new contract without finishes and stakes.

De Ridder vs. Dolidze booked at light heavyweight for UFC Sacramento

Former ONE two-division champion Reinier de Ridder (21-4) and Roman Dolidze (15-5) will meet at 205 pounds at UFC Sacramento on Aug. 22 at Golden 1 Center, with both men moving up from middleweight to snap skids. De Ridder started 4-0 in the UFC before back-to-back losses to Brendan Allen and Caio Borralho prompted the move up, while Dolidze has gone 3-0 in prior light heavyweight appearances. The card is headlined by a middleweight bout between Anthony Hernandez and Gregory Rodrigues.

Why it matters: Two ranked middleweights rebooting at 205 pounds gives a thin light heavyweight division fresh contenders to sort out.

Poirier opens up on airport arrest and father's homelessness

Retired former interim champion Dustin Poirier addressed his June 21 arrest for public intoxication after being removed from a flight in Atlanta on Father's Day. In a lengthy interview, Poirier revealed his father is an alcoholic currently homeless, and said dwelling on that situation led him to drink at the airport during a bout of depression. He said he has returned to therapy and acknowledged he 'knew better in the moment.'

Why it matters: A candid look at a beloved recently retired star's mental-health struggles, a reminder that life after fighting can be its own fight.

Denver Post profiles Gaethje's improbable climb to undisputed gold

A long-form feature traces Justin Gaethje's path from an Arizona mining town and a copper-mine summer to becoming undisputed UFC lightweight champion by upsetting Ilia Topuria at the White House as roughly a 6-1 underdog. Gaethje, 37, has been an underdog in 12 of his 16 UFC fights and detailed how coach Trevor Wittman and his team refined his car-crash style into a smarter, spot-fighting approach after early losses. Gaethje says he is torn on retirement but currently plans to fight again.

Why it matters: The reigning lightweight champion's next move — defend or retire — hangs over a division stacked with Topuria, Pimblett and Saint Denis.

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