To celebrate the unprecedented win, the entire Croatian cabinet swapped their usual formal dress for football jerseys during their session in the Croatian capital the following day.
With Southgate, Kyle Walker, Harry Kane and co credited with everything from making England fun to watch again to uniting a country divided by Brexit, the embattled prime minister may be hoping some of their shine will rub off on her.
A first World Cup final since 1966 and a showdown with France agonisingly slipped away.
Trump dishes up fresh dose of chaos aimed at May, Londoners
Mr Trump is hardly likely to catch a glimpse of the six metre giant orange inflatable blimp that depicts him as a screaming baby. Trump and May are expected discuss Russian Federation ahead of the president's meeting with President Vladimir Putin on Monday.
Numerous photos show the players embracing Southgate.
Matt Reece, 25, who works in marketing, said England had far outperformed the low expectations of them when the tournament began. This shows character and is what makes me proud. But once you're here and played as well as we did, you want to take those opportunities in life. We're gutted, we've worked so hard and the fans were incredible.
Tense moments followed for the 12th man as Croatia tried to pile the pressure on and fans had their hearts in their mouths when the score was only kept level by some desperate England defending.
Southgate said of the crushing defeat to Croatia: "We knew the team we brought was the most inexperienced team in the competition and the only way we're going to boost that is by playing in more tournament games". The two teams had already clinched a spot in the knockout round when they played each other in the Group G finale which gave them a chance to rest players.
The Chelsea defender said: "It is a good conversation for me to have with the manager in the coming month or so. Am I f**king missing something here?!" one fan tweeted.