The match began with Fluminense dominating possession as Ulsan were content to sit back and defend. The Brazilian side finally broke through in the 27th minute, when Jhon Arias curled a free-kick from 24 yards into the top right corner to beat goalkeeper Jo Hyeon-woo for a 1-0 lead.

It was the third free-kick goal of the tournament, with Arias joining CF Pachuca's Bryan Gonzalez and Inter Miami CF's Lionel Messi.

Ulsan equalised with the most surprising counter-attack. They capitalised on a Fluminense giveaway with surgical precision, with Um Won-sang making a long run and sending a hard cross to the far post to Lee Jin-hyun, who beat goalkeeper Fabio from the sharpest of angles to make it 1-1 with what was Ulsan's first shot of the game.

Suddenly, Ulsan were on the front foot. They applied pressure on the Fluminense backline and struck again just before the break.

After Fluminense failed to completely clear the ball out of their area, Lee swung a cross to Um, whose diving header in the box beat Fabio for a 2-1 lead.

Fluminense levelled in the 66th minute. Milosz Trojak tried to clear Keno’s cross, but the ball stayed in the box and fell to Nonato, who calmly tucked his right-footed strike inside the right post to make it 2-2.

Fluminense regained the lead in the 83rd minute. With a scrambling Ulsan defence unable to clear the ball, substitute German Cano drove a cross to Juan Freytes, whose first-time finish beat Jo for a 3-2 advantage before Keno's stoppage time effort sealed the points for the Brazilian side.

Both teams will play their final group match on Wednesday with Fluminense taking on Sundowns while Ulsan will face Borussia Dortmund.