West Ham United Under-18s earned a precious 3-2 Barclays U18 Premier League victory against a strong Tottenham Hotspur outfit at Spurs' Enfield Training Centre on Saturday.
Skipper and prolific midfielder Kieran Bywater twice put the visitors ahead, with Joe Pritchard and Nathan Oduwa levelling for the hosts.
Though Spurs had many an opportunity to take the lead, they were made to pay for their profligate finishing, as former Arsenal youngster Jordan Brown bagged the winner with just three minutes left to play.
Steve Potts was forced into a defensive reshuffle for the contest, with defenders Reece Burke and Kyle Knoyle both on international duty with England U18s. Emmanuel Onariase and birthday boy Rob Girdlestone were the men to deputise.
It took the Hammers just three minutes to break the deadlock, with Bywater bagging his eighth of the campaign already. The opportunity arose with Brown charging down opposition 'keeper Luke McGee's clearance, enabling Bywater to tap into an empty net.
Tottenham, however, came back strongly and the pressure told ten minutes later, when Pritchard reacted quickest to West Ham goalkeeper Sam Baxter's initial stop from a Daniel Akindayini effort to head home.
The leveller prompted further chances for the hosts, with Pritchard spurning the best of them, firing over the bar having been set up by Cy Goddard.
And West Ham made the most of their good fortune to snatch a half-time lead, as the irrepressible Bywater, fed by Josh Cullen, found the bottom corner from 18 yards,
After the break, the Hammers looked to extend their advantage, with Djair Parfitt-Williams and Moses Makasi both seeing efforts repelled by McGee.
At the other end, the influential Akindayini had Baxter scrambling across his goal, firing narrowly wide after 53 minutes. Back came the Hammers, this time through Cullen, who stole possession before seeing his drive smartly saved by the Spurs custodian.
The chances, however, continued to come, as Oduwa won a penalty, having been felled en route to goal. It was he who stepped up himself to cooly convert the spot-kick.
But it was to be West Ham's day and as they pushed forward one final time, it was striker Brown who held off his marker to fire low into the corner beyond McGee's reach.
Victory hands Potts' men their third consecutive league success, having previously won 5-0 against Liverpool at Little Heath a fortnight ago, followed by last weekend's 2-1 win at West Bromwich Albion.
West Ham United Under-18s return to Little Heath next weekend for the visit of Norwich City, with parking and admission both free of charge.
West Ham United: Baxter, Amoo, Page, Marlow, Onariase, Girdlestone, Makasi, Cullen, Brown (Martins), Bywater, Parfitt-Williams (Mavila)
Subs not used: Nemrava, Bailey