Chelsea managed to secure a 2-1 win over Palmeiras in the Club World Cup quarter-finals with a fortunate late own goal.
The decisive moment came in the 83rd minute when Malo Gusto's cross deflected off Agustin Giay and goalkeeper Weverton before finding the back of the net.
Cole Palmer had initially put Chelsea in the lead, but Estevao Willian equalized with a superb strike for Palmeiras.
Despite Palmeiras threatening towards the end, it was Chelsea who advanced to face Fluminense in the semi-finals.
The match was played in front of a crowd of 65,782 at Lincoln Financial Field, with tickets priced as low as £8.
Even with a competing Independence Day concert and firework display in downtown Philadelphia, fans created a vibrant atmosphere.
Palmeiras' supporters added to the energy with constant drumbeats and singing throughout the game.
Despite some challenges, Chelsea settled quickly into the game, with Pedro Neto starting despite personal considerations after the recent passing of his countryman Diogo Jota.
Palmer's opening goal was a highlight, showcasing his skill and composure in front of goal.
Chelsea had opportunities to extend their lead, but it was Palmeiras who found the equalizer through Estevao's impressive finish.
A late reshuffle due to captain Reece James's injury did not derail Chelsea, as Gusto's fortuitous goal secured their spot in the next round.
Despite late drama, Chelsea held on for the win and will progress to the semi-finals, albeit without Liam Delap and Colwill due to bookings.