Shinji Kagawa scored the winner as Japan beat Paraguay 1-0 on Saturday in a friendly.
Kagawa, who plays for German first division club Borussia Dortmund, scored in the 64th minute, taking a through pass from Kengo Nakamura and beating Paraguay goalkeeper Justo Villar with a right-footed shot that flew in off the post.
"Kengo made a great pass and I was able to score," said the 21-year-old Kagawa, who joined Dortmund in July.
Moments after Kagawa struck, Japan 'keeper Eiji Kawashima preserved the lead with a fine save to deny Paraguay forward Lucas Barrios.
Paraguay had come close to opening the scoring a minute into the second half, when Jonathan Santana fired inches wide of the right post.
The friendly was a rematch of their second-round game in June at the World Cup in South Africa, when Japan lost to Paraguay in a penalty shootout following a 0-0 draw.
Japan coach Alberto Zaccheroni watched from the stands. The 57-year-old Italian was appointed on Monday but has yet to receive a work permit.
"I was very impressed with the team," Zaccheroni said. "They were quick and showed good teamwork."
