A 704-strong crowd watched West Ham United's Development Squad produce a dominant display to secure a 4-1 win over Arsenal at Rush Green on Friday evening.
The Gunners were previously unbeaten in the Barclays Under-21 Premier League but were second best for much of the contest as the Hammers recovered from a goal down to score a fine victory.
Goals from Rob Hall, Matthias Fanimo, Dan Potts and Blair Turgott secured the points that take West Ham level with Arsenal on ten points at the top of the Group 1 table.
Arsenal opened the scoring after just five minutes when Serge Gnabry drove at the Hammers defence before finding Kris Olsson. The attacking midfielder weaved in and out before cutting back and sending a sumptuous ball into Elton Monteiro, who headed past Raphael Spiegel.
The Gunners were not in lead for long, though, as Ian Hendon's side rallied and equalised just eight minutes later. The ever-impressive Hall did well to hold off his man before breaking into the box and firing in at the near post.
The Hammers continued to press and after 18 minutes they took the lead through Fanimo. Turgott showed terrific work ethic by winning the ball back and driving to the byline before smashing the ball across goal. Paul McCallum missed with an attempted overhead kick, but the ball fell to Fanimo, who stayed composed to slot the ball past James Shea.
The Hammers would have to wait just under an hour before grabbing a third goal which effectively ended the contest.
Arsenal failed to deal with Hall's inswinging corner and the ball fell to Potts, who was only too happy to smash the ball in from five yards.
With two minutes to go, Turgott completed the rout, latching on to McCallum's superb through ball and finishing coolly past Shea to the delight of the majority of the large crowd.
Hendon's youngsters have now recorded three wins and a draw from their opening five league fixtures. Next up for the Development Squad is another home fixture on Friday 28 September against Norwich City, who snatched a late draw against the Gunners during the last round of fixtures.
Post-match reaction and highlights will appear on whufc.com and West Ham TV soon.
West Ham United: Spiegel, Driver, Spence, Chambers, Potts (Ruddock 73), Turgott, Moncur, Lletget, Hall (D.Tombides 85), McCallum, Fanimo