America de Cali secured a hard-fought 1-0 victory over Atletico Nacional at the Olimpico Pascual Guerrero in a tense Primera A encounter. The decisive moment arrived just before halftime, when Yerson Guzman capitalized on a well-crafted assist from Rogerio Carrascal in the 46th minute to put the home side ahead. Despite a flurry of yellow cards for both teams throughout the second half, including bookings for America's C. Tovar, Jean, and R. Carrascal, and for Nacional's S. Garcia, A. Morelos, M. Moreno, and M. Casco, neither side could find the back of the net again. Both teams made multiple substitutions in an attempt to alter the momentum, but America de Cali held firm defensively to claim all three points.