Emotional Messi explains tears after Argentina goal

Lionel Messi says he was brought to tears after scoring the opening goal in Argentina's 3-0 win against Algeria because of a matter "completely unrelated to football".

The Argentina captain claimed a magnificent hat-trick on his 200th appearance for his country as his side made the perfect start to their World Cup defence.

After a curling home a wonderful opener after 18 minutes, the 38-year-old was swarmed by team-mates in celebration before being spotted wiping away tears on his shirt.

"Why did I cry? It was something completely unrelated to football," said Messi.

"I went through some difficult days, but I'm grateful to the entire delegation and my team-mates because they were always by my side, giving me a lot of strength to help me get through it."

Messi's hat-trick, which was his first at a World Cup, took his finals goal tally to 16, moving him level with Germany's Miroslav Klose as the all-time leading scorer in the competition's history.

Messi also became the first player in history to feature at six World Cups, 20 years to the day since his debut at the tournament, where he scored in a 6-0 win over Serbia and Montenegro.

The eight-time Ballon d'Or winner's performance helped Argentina win their opening match at a World Cup as defending champions for the first time, after defeats in 1982 and 1990.