UFC 329 main card preview: McGregor vs. Holloway 2 breakdown

Conor McGregor returns to the Octagon for the first time in five years when he headlines UFC 329 against Max Holloway during International Fight Week in Las Vegas. Thirteen years after their first meeting, the two former champions meet again in a welterweight main event that tops one of the strongest cards of the year.

Alongside the headline rematch, the main card features several important contests across the lightweight, bantamweight and flyweight divisions, with rankings and title contention on the line.

Here's a fight-by-fight look at the UFC 329 main card.

Weight Class: Lightweight

The main card opens with an intriguing clash between veteran experience and explosive finishing ability.

Terrance McKinney has built a reputation as one of the UFC's fastest starters, with 17 of his 18 professional victories coming inside the opening round. His aggressive wrestling and knockout power make him a dangerous opponent from the opening bell.

King Green, meanwhile, remains one of the division's most experienced competitors. Known for his relaxed defensive style and sharp counter-boxing, Green will likely look to weather McKinney's early pressure before taking control as the fight progresses.

The opening minutes are likely to decide this contest. If McKinney can impose his pace early, he'll have every chance of securing another quick finish. If Green can survive that initial storm, his experience and output could become decisive over three rounds.

Weight Class: Flyweight

This flyweight matchup could have significant implications for the division.

Brandon Royval continues to be one of the UFC's most unpredictable fighters, constantly mixing striking with scrambles and submission attacks. His relentless pace often forces opponents into uncomfortable positions.

Standing opposite him is Britain's Lone'er Kavanagh, who has quickly established himself among the division's rising contenders through his speed, precision and composed striking.

Kavanagh's ability to control distance will be tested throughout the contest, while Royval will aim to disrupt his rhythm by creating chaotic exchanges and forcing grappling situations whenever possible.

Weight Class: Bantamweight

Few fights on the card carry bigger implications for the bantamweight rankings than Cory Sandhagen's meeting with Mario Bautista.

Sandhagen returns looking to rebuild momentum following his title defeat to Merab Dvalishvili. Widely regarded as one of the division's most creative strikers, he combines movement, stance switches and varied attacks to keep opponents guessing.

Bautista enters with considerable momentum after winning nine of his last 10 fights. His balanced skill set allows him to blend effective boxing with consistent wrestling pressure, making him a difficult stylistic challenge for anyone in the division.

For Bautista, victory would represent the biggest win of his UFC career. For Sandhagen, it's an opportunity to remain firmly in the title conversation.

Weight Class: Lightweight (Co-main event)

The co-main event sees two of Europe's biggest lightweight names collide in a pivotal matchup.

Benoît Saint Denis has become known for his relentless pressure, physical style and willingness to push a demanding pace from start to finish. His wrestling and top control have become key parts of his success inside the Octagon.

Paddy Pimblett continues to divide opinion but has consistently found ways to win. His unpredictable striking and opportunistic grappling have carried him into the lightweight rankings, where he now faces one of his toughest tests to date.

The outcome may come down to whether Pimblett can create the scrambles that suit his submission game, or whether Saint Denis is able to dictate the fight through pressure and wrestling.

Weight Class: Welterweight (Main event)

More than a decade after their first meeting, Conor McGregor and Max Holloway meet again in one of the most anticipated rematches in recent UFC history.

McGregor returns for the first time since suffering a broken leg in 2021, with much of the pre-fight discussion centred around how the lengthy lay-off may affect his movement, timing and trademark left hand.

Holloway enters following his BMF title defeat to Charles Oliveira earlier this year and moves up to welterweight for the occasion. Throughout his career, Holloway has built his reputation on relentless volume, exceptional durability and an ability to maintain a high pace over five rounds.

The stylistic contrast makes for a fascinating main event. McGregor has traditionally done his best work early, relying on precision and power to dictate fights. Holloway, meanwhile, has often grown stronger as contests progress, using his conditioning and output to overwhelm opponents in the later rounds.

If McGregor can rediscover the timing that made him one of the sport's biggest stars, he has the power to change the fight at any moment. Should the contest extend into the championship rounds, Holloway's pace and endurance could become increasingly important factors.

McGregor's long-awaited return understandably headlines UFC 329, but the main card offers far more than just its blockbuster main event. Several key divisional matchups could shape future title pictures, while established contenders and rising stars all have an opportunity to make a statement on one of the UFC's biggest stages.