Two-time defending champion Chile opened their Copa America campaign with a 4-0 win over guest Japan on Monday, with Eduardo Vargas scoring a pair of goals to become Chile's all-time leading scorer in the South American competition.
Erick Pulgar and Alexis Sanchez also scored for the titleholders, who are trying to become the first nation to win three straight Copa titles since Argentina in the late 1940s.
Vargas scored in each half to reach 12 goals with Chile in the tournament, two more than Enrique Hormazabal.
The victory moved Chile to the top of Group C along with Uruguay, which opened with a 4-0 win over Ecuador on Sunday.
Japan, playing as a Copa America guest for the second time, brought to Brazil a young squad focused on the Olympic tournament at home next year. The Japanese youngsters struggled against the experienced Chilean squad which was in control from the start at the Morumbi Stadium.
Boosted by most of the 23,253 fans at the Morumbi, Chile created most of the significant chances.
After Pulgar headed in a corner-kick cross by Charles Aranguiz in the 41st minute, Vargas added to the lead with a shot from outside the area in the 54th after a pass by Mauricio Isla.
Sanchez found the net with a header in the 82nd, and Vargas closed the scoring about a minute later with a long lob shot over goalkeeper Keisuke Osako as he charged from his net.
Chile won the last two editions of the Copa America, beating Argentina in penalty shootouts in the final both in 2015 and 2016. Argentina are the only team to have won three consecutive South American titles, from 1945-47.
Coach Reinaldo Rueda, debuting with Chile in an official tournament, has been gradually revamping the squad since he took over in 2018. Among the veterans back from the team's recent triumphs were Vargas, Sanchez and Arturo Vidal.
Japan last played in the Copa America in 1999, when they were eliminated in the group stage. Among the youngsters in Brazil was Takefusa Kubo, the 18-year-old who has joined Real Madrid's "B'' team for next season.
He played from the start and was a threat for Japan in attack. He got an ovation from the crowd at the Morumbi after getting past a defender with a ball through his legs about 10 minutes into the match. He nearly scored after a nifty move past a defender inside the area in the 65th, but his shot hit the outside of the net.
Qatar, host of the 2022 World Cup, are the other guest nation in this year's tournament. It drew 2-2 with Paraguay in its Group B opener on Sunday. (AFP)