06/16/2014 01:51 EDT | Updated 08/16/2014 05:59 EDT

World Cup match report: Germany 4, Portugal 0

Portugal fell apart, and a cool Germany took full advantage.

Thomas Muller notched a hat trick as Germany ran over 10-man Portugal 4-0 in its opening match of the 2014 FIFA World Cup on Monday. 

The Germans went up 2-0 before Pepe lost all control of his emotions in the 37th minute. The Portuguese defender headbutted Muller after the Germany striker went down under his challenge. 

Pepe was sent off, Muller scored shortly after, and it was pretty much over at halftime. 

Key play

Things began to unravel for Portugal when Germany scored its first goal. Portuguese defender João Pereira pulled German striker Mario Götze down in the box, conceding a penalty. Angry Portugal players immediately swarmed Serbian referee Milorad Mazic to no avail. 

Muller scored from the spot soon after to give Germany a 1-0 lead, and a frustrated Portugal would soon get into worse trouble when Pepe was sent off. 

Man of the match

Thomas Muller. The German midfielder looks keen to become the first player in history to defend his Golden Boot at the World Cup. 

It was a good day for…

Efficiency. Germany was predictably clinical, cool, composed, and deadly in dispatching its most difficult opponent of the group. This is a bad thing for anyone else who wants to win the World Cup. 

It was a bad day for…

Pepe. Cristiano Ronaldo. Fábio Coentrao. Rest of Portugal. Pepe got a red card. Ronaldo was ineffective, probably still hurt. Coentrao pulled a groin muscle and might be out of the tournament. And Portugal’s World Cup hopes are in shambles. 

The number

49. Number of hat tricks in the history of the World Cup, after Muller’s performance.