Graham Potter's debut as West Ham manager ended in disappointment, with Aston Villa securing a 2-1 win to advance to the FA Cup fourth round. Lucas Paqueta initially put West Ham ahead, but second-half goals from Amadou Onana and Morgan Rogers turned the match around. Paqueta nearly scored early with a long-range effort that narrowly missed the target.
Just minutes after his initial attempt, Paqueta found the net by connecting with Crysencio Summerville's cross, slotting it into the bottom-right corner. Despite West Ham's early dominance, Villa struggled to create chances in the first half but gradually improved after the break.

Villa's equaliser came under controversial circumstances. Onana's shot appeared to go out of play, yet a corner was awarded. Tyrone Mings flicked it on to Ian Maatsen, whose shot was mishandled by Fabianski, allowing Onana to score from close range.
Villa took the lead five minutes later through a swift counter-attack. Ollie Watkins outpaced Konstantinos Mavropanos and delivered a low cross for Rogers to finish. Jacob Ramsey almost extended Villa's lead with another counter-attack, but his shot hit the woodwork.
Despite West Ham's late efforts to equalise, Villa held firm. This victory marked their first FA Cup win over a Premier League team since defeating Liverpool in the 2014-15 semi-final.
Potter faced an uphill task from the outset at West Ham, having only taken charge days before this match. The club has seen six of its last seven managers lose their opening games, with Slaven Bilic being an exception in 2015 during a Europa League qualifier.
This defeat means West Ham has been knocked out of the FA Cup in the third round for two consecutive seasons. The last time they experienced such back-to-back exits was between 2011 and 2014.
For Unai Emery and Aston Villa, this result was fortuitous given their lack of shots on target until late in the game. Nonetheless, they managed to secure victory and progress further in the competition.