Read: West Ham v Spurs match report
Eric Dier was on hand to score the unlikely winner at the Boleyn Ground and the debutant shared his views on the club's website.
“I was just really happy to play to be honest and to score on top of that, well, I never imagined it,” said Dier.
“We knew it was going to be hard 11 against 11 at West Ham so with the sending off it was even harder.
“I moved to right-back but I’d played there for Sporting (Lisbon) before, so I wasn’t completely in shock going to play there. I was just delighted to score at the end.” said the former England youth international.
West Ham boss Sam Allardyce was left fuming with Mark Noble's early penalty miss.
"I think if we'd scored the penalty we win the game," Big Sam said on whufc.com.
"I don't think there's much doubt about that. In the end I would want the rest of the players to forgive Mark and not lie on him as a heavy burden as he doesn't deserve it as his penalty taking in the three years I've been here has been supreme.
"We've got to forgive him for missing the odd one and the rest of the lads should have made up for that and when Nobes came in they should have smacked him on the back of the head and said don't worry about it we've got you out of jail as we should have won." said the Hammers boss.
"The Premier League will punish if you don't finish your chances and they punished us on Saturday."