It led to pundits and fans alike showering the 24-year-old with the praise he deserved for turning just one point into three, when it seemed like the Eagles of Carthage wouldn't budge as they played for a draw.
'I want to prove myself at a major tournament, I want to be up there with the best in the world and the only way to do that is to perform on the big stage and in the big moments. I don't think he did that.
"I think we competed well against Belgium, and I think when there were tackles, they got stuck in just as much as we did".
"For me, he has outstanding potential and I hope (the game) has given him a lot of belief". We were all fairly new to each other in that tournament and now we've managed to build relationships and the team really is a team now.
"We're one team over here and we know we've got quality all over the pitch".
"It's important that we keep improving as a team". The Manchester United forward has more energy tracking back and when he attacks he can go past people with the ball at his feet.
Costa Rica in danger of not qualifying from group stage
The critics had seen Serbia as the team in Group E that would be easiest to defeat. Costa Rica goalkeeper Leonel Moreira at a training session.
Bernd Leno: Arsenal agree fee for Bayer Leverkusen and Germany goalkeeper
German global keeper Bernd Leno has moved to Arsenal from Bayer Leverkusen , with the deal confirmed on Tuesday evening. Leno did have Gunners' fans excited last week when he "liked" an Instagram post linking him with a move to the Gunners.
Argentina didn't draw because of Messi's missed penalty - Maradona
"We will respect all our opponents, particularly Argentina , but we will not adjust to them", he told reporters."We will play our style".
Ratings peaked at 18.3 million during the closing minutes, when more than two-thirds (69%) of all UK TV viewers were tuned to the match.
ITV will also broadcast England's last-16 tie should they make it through the group, a slight concern given their 0-2 record of knockout games in the last 22 years.
"It's been a unusual but very exciting time over the last few years and something that I'm ever so proud of", Maguire said on the eve of the tournament.
"But you have to stay calm in them situations and I've had it before, so it wasn't sort of a shock to me, so I knew what I had to do to recover fast enough for the game". It gives me confidence doing that and I want to do that in the games ahead.
Well, it bodes well as England's first two group games against Tunisia and Panama are on the BBC - matches that should end in victories for Gareth Southgate's men.
That's some turnaround, especially as Maguire only made his worldwide debut last October and plays for a team that hovered in the middle of the Premier League for most of last season.
"There are always things (to improve)", the England boss said.