We all know watching a match with rival fans is horrible.
You feel reluctant to celebrate wildly if your team scores while hating it if they celebrate when their team scores - not to mention the countless incidents that you have very different opinions on.
So, imagine what is what like for Gary Lineker, Alan Shearer, Rio Ferdinand, John Hartson and Dean Saunders in the BBC studio.
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The three Englishmen and two Welshman were analysing the match for BBC and did a very good job of remaining impartial when the cameras were rolling.
But there’s no doubt that the five men, who have all represented their country on plenty of occasions, were cheering their nation on during the 90 minutes.
It was a crucial match for both. After England’s draw with Russia on Saturday, they desperately needed the three points against Chris Coleman’s side.
Saunders and Hartson must have been loving it back in the Paris studio when Gareth Bale’s free-kick squirmed past Joe Hart in the 42nd minute.
But Lineker, Shearer and Ferdinand were going to get their turn.
Roy Hodgson made two substitutions at half-time, replacing Raheem Sterling and Harry Kane with Jamie Vardy and Daniel Sturridge. It proved to be the turning point.
England dominated the second-half and it was Vardy that equalised after just 11 minutes after coming on. The Leicester striker pounced on a loose ball to make it 1-1 and the three Englishman were no doubt celebrating in the studio.
A draw wasn’t a good result for the Three Lions, though. It would have left them with two points after just two matches and their Euro 2016 campaign hanging by a thread. So, when Daniel Sturridge prodded the ball home in the 92-minute, every English citizen went mental.
And that included Lineker, Shearer and Ferdinand who ignored the two Welshman sitting in the room to jump and celebrate.
Watch the scenes below:
It’s a credit to the former professionals to remain calm after the final whistle and analyse the match as if they didn’t have any loyalty to the two sides.
Of course, the trio may have been slightly more reserved than many in England and those that travelled to France - especially those in the fan parks. Just look at how they reacted when Sturridge gave them the three points.
England fans will be hoping their match against Slovakia isn't settled in injury-time. They conceded a late, late equaliser against Russia on Saturday and needed Sturridge to score in the 92nd-minute against Wales.
How about England just secure a victory against Slovakia in the initial 90 minutes on Monday?