Colombia finished the World Cup group stage as deserving Group K winners after a breathless 0-0 draw with Portugal at Hard Rock Stadium in Miami Gardens, a result that produced enough drama for a final, even if neither side could find the decisive goal.
The night's defining moment arrived in the second minute of stoppage time.
Davinson Sánchez powered a header home from a worked corner, the crowd erupted, and then VAR intervened, ruling the centre-back offside by the margin of a big toe, a verdict confirmed on the stadium screens to a chorus of disbelief.
Colombia entered the contest in imperious form, needing only a point to claim top spot having won both of their opening group games.
Portugal, on four points, had to win to leapfrog their opponents and required the kind of performance their quality demands.
The South Americans threatened from the first whistle. Luis Díaz drove at João Cancelo down the left in the opening minute, delivering a cross that Jhon Córdoba headed narrowly over.
Córdoba came close again soon after, shrugging off Bruno Fernandes before forcing a sharp one-handed save from Diogo Costa.
Portugal gradually worked their way into the contest. Cristiano Ronaldo sent a tame free-kick straight at Camilo Vargas, before Fernandes sorted his feet quickly and powered an effort that Vargas smothered well, with Ronaldo's overhead kick blocked on the follow-up.
The half-time scoreline of 0-0 barely did the spectacle justice, the combined xG of 1.38 at the break was the highest recorded in a goalless first half at this tournament.
Both managers made sweeping changes at the interval. Portugal replaced João Cancelo and Rúben Neves with Diogo Dalot and João Neves, while Colombia introduced Richard Ríos for Jefferson Lerma and Luis Suárez for Córdoba on the hour.
Ríos almost made an instant impact, firing narrowly wide from close range moments after coming on, before Renato Veiga produced a crucial block to deny Suárez.
Ronaldo cut a peripheral figure for much of the night.
The 41-year-old managed just three shots and 35 touches across the full 90 minutes, and despite making his 25th World Cup appearance, he could not add to his two goals against Uzbekistan.
Rafael Leão, introduced in the 70th minute, added more urgency from Portugal's flank, and came within inches of snatching a win, poking wide at the death from inside the box.
James Rodríguez, meanwhile, was Colombia's creative heartbeat throughout.
The veteran playmaker became the first Colombian to make 11 appearances at a World Cup, and though he ended the night without a goal or assist, he created a joint team-high five chances and completed a game-high 43 passes in the final third before being withdrawn for Juan Quintero in the 76th minute.
