Conor McGregor returns to the Octagon for the first time in five years when he faces Max Holloway in a five-round welterweight main event on Saturday night at UFC 329, closing out International Fight Week at T-Mobile Arena in Las Vegas.McGregor (22-6 MMA) has not competed since sustaining a broken tibia against Dustin Poirier at UFC 264 in July 2021 and has faced several issues outside of the UFC.Recommended Stories list of 4 itemsend of listThe former two-division champion at featherweight and lightweight was originally scheduled to return against Michael Chandler at UFC 303 in June 2024 to conclude their Ultimate Fighter 31 rivalry, after the show aired in 2023. However, a McGregor toe injury forced a postponement and the match was never rescheduled.McGregor, 37, returns to the welterweight division for the first time in six years. The Irishman is looking to re-establish himself as a title contender while attempting to defeat Holloway for the second time, following a unanimous decision victory over him in August 2013 at a UFC Fight Night event in Boston in McGregor’s second UFC fight.Holloway (27-9 MMA) is making his official welterweight debut after a historic run at 145lb (65.5kg) and 155lb (70.5kg) over the last decade-plus.Here’s all you need to know about the card.What time do the fights start?The main card is expected to start at 9pm ET (01:00 GMT on Sunday), with McGregor vs Holloway likely to make their walks to the Octagon at about 12:30am ET …