This was only the first weekend of the World Cup, 2018 and teams have been playing like its now or never.
Up till that moment, Peru had been in the ascendancy and bar the goal that is how Peru played the game.
With Peru constantly pushing on the Denmark defence, Åge Hareide would have been relying on William Kwist to help sit back while his fellow midfielders pushed further forward in attack.
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Lozano, a 22-year-old forward nicknamed "Chucky", got Mexico going with a deflected shot over the bar in the first minute. El Tri will take on South Korea on June 23 in their second Group F matchup, while Germany meets Sweden that same day.
The referee pointed to the spot upon reviewing video footage and Cueva blazed over, much to the dismay of Peru's sizable travelling support.
Three short replayed angles followed, quicker than the minutes people threatened it would take to look at VAR, and Gassama decided he was wrong and rightly pointed to the spot.
Peru were pacy in their counter attacks but lost their way around the box as one gilt-edged chance after another was wasted.
Peruvian fans turned the streets of Saransk - the smallest of the World Cup host cities - into a giant Latin American carnival as they marched towards Mordovia Arena to watch their team face Denmark.
Australia will have to probably have to beat Denmark in Samara on Thursday (10pm AEST) to retain hopes of qualifying for the second round of the World Cup, but will have to do so against a Danish team that has not been beaten for 16 games and has not conceded a goal for five.
Peru - quarter-finalists and semi-finalists at the past two Copa America tournaments under the guidance of Ricardo Gareca - repaid the faith and passion with a typically pulsating performance that has seen them emerge from the shadows in CONMEBOL.