Portugal, which Korea beat in the group stage, defeated Switzerland in the round of 16 and advanced to the quarterfinals.
Hamus, a 21-year-old rookie who started in place of star Ronaldo, led the team to a great victory by recording the first hat-trick of the tournament.
This is Reporter Lee Seong-hoon.
Portuguese coach Santos made the decision to exclude Ronaldo from the starting lineup for the round of 16 match against Switzerland, despite starting in all three group stage matches and failing to score a field goal.
It is the first time in 14 years since the 2008 European Championships that Ronaldo has been omitted from Portugal's starting list at a major tournament.
Hamus, a 21-year-old rookie who replaced Ronaldo, lived up to the manager's faith in the 17th minute of the first half.
He scored the opening goal with a powerful left-footed shot from the left side of the goal that pierced the narrow gap between the goalkeeper and the post and pierced the upper net.
In the 33rd minute of the first half, 39-year-old Pepe, who wore the captain's armband instead of Ronaldo, headed a corner kick into the goal.
Pepe became the oldest ever scorer in a World Cup knockout round of 16 or higher.
The performance of Hamus, the 'Ronaldo replacement', became more terrifying in the second half.
In the 6th minute of the second half, Dallo’s cross broke through the right side and shook the net again.
In the 22nd minute of the second half, he scored the first hat-trick of the tournament with a chip shot that slightly passed the goalkeeper who ran out.
In the 27th minute of the second half, Ronaldo, who was replaced by Hamus, shook the net once amidst the cheers of the crowd, but was declared offside and failed to score the first field goal of the tournament again.
Portugal, who won 6-1 with Leão's goal in extra time in the second half, advanced to the quarterfinals for the first time in 16 years since 2006.
Portugal will face Morocco on the 11th to advance to the semifinals.