West Ham boss David Moyes was delighted with their character for victory at Leeds United.
Raphinha had put the hosts ahead after just 20 minutes, but the Hammers hit back through a deflected Jarrod Bowen effort that was later ruled a Junior Firpo own goal.
As time waned, however, Antonio was on hand to apply a calm finish past the advancing Ilian Meslier to ensure victory.
Moyes told the club's website: "The emotions of the game were incredible.
"If you're a neutral watching it that was an incredible game, but if you're a supporter of either team you might have looked at it differently. There were that many chances at both ends.
"When you look at the week we've had – we were away at Old Trafford in the week and have come to Elland Road and won as well – it's a big day for the players and they deserve it.
"The squad we've got, everybody's right in it. We stayed up for a few days after the Manchester United game, we thought that was the right thing to do, and it's turned out that way with the result today.
"It was a really hard-fought win and we showed huge character to come back.
"Leeds are completely different from any other side we play and if affected us, especially in the first half.
"I didn't think we played so well, and some of our better players didn't play well today, but as the game went on we grew into it and got the win.
"The players have done a brilliant job, and do you know something? I wasn't surprised. We've got a wee bit more of inner drive in us. Of course there will be games where we go behind and maybe can't get back from it, but in the main, certainly in the last 18 months or so, we've been in every game.
"We might not win them all, but we've been in every game fighting to try and win it. Today was another one where we're fighting to try and win it. We got back to draw it, then we went on to win it, so it's really good.
"Jarrod Bowen was excellent today, as he's been in all three games this week.
"I was able to keep him on because I know his fitness levels, but I was also able to keep him on because he has been playing so well and is giving us something a little bit more. It's just missing his goals right now."
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