Colombia became the latest side to qualify for the Round of 32 after Muñoz got his second goal of the tournament in Guadalajara.
In the 76th minute, Juan Fernando Quintero's clever pass was allowed to run into the Congo box. That saw the ball reach Muñoz who ruthlessly found the net with his left foot, via a deflection.
He joins fellow Palace teammates Daichi Kamada and Ismaïla Sarr on two goals, in an intriguing race to see which Eagle scores the most at the Finals.