Son Heung-min of Korea celebrates after scoring against Thailand during the teams' Group C match in the second round of the Asian World Cup qualification tournament at Rajamangala Stadium in Bangkok, March 26. Yonhap

Son Heung-min scored in his second straight match as Korea defeated Thailand 3-0 on Tuesday in Bangkok to remain unbeaten in the Asian World Cup qualifying tournament.

Son's 46th international goal doubled Korea's lead in the second half at Rajamangala Stadium, after Lee Jae-sung opened the scoring 19 minutes into the Group C match in the second round of the Asian qualification for the 2026 FIFA World Cup. Substitute Park Jin-seop added an 82nd-minute goal for the comfortable win.

Korea stayed atop Group C in the second round with 10 points from three wins and a draw.

This was a bounceback performance for the Taegeuk Warriors, who were held by Thailand 1-1 at home last Thursday.

Son has now scored in all four matches so far in the second round. He sits four back of Hwang Sun-hong, caretaker boss for the national team, for second place on the Korean scoring list. Cha Bum-kun, a Bundesliga star from the 1980s, is the all-time leader with 58 goals.

This was Son's 125th international appearance, giving him the sole possession of fifth place. Cha and former defender Hong Myung-bo are tied at the top with 136 caps each.

Lee Jae-sung of Korea, left, high-fives teammate Paik Seung-ho after scoring against Thailand during the teams' Group C match in the second round of the Asian World Cup qualification tournament at Rajamangala Stadium in Bangkok, March 26. Yonhap

There are nine groups of four in the second round. The top two countries from each group will advance to the third round.

Korea have played at every World Cup since 1986.

Thailand made some early pushes against a scrambling Korean defense, with Supachok Sarachat firing a shot just over the net in the opening minute after taking a through ball from Weerathep Pomphan.

Korea gradually found their rhythm with some quick passes that poked holes through Thailand's defense. In the 13th minute, Hwang In-beom sent Son Heung-min in alone with a nifty pass, but defender Suphan Thongsong made a hard, clean tackle to foil that opportunity.

Korea finally broke through in the 19th minute, in a sequence that began with Lee Kang-in threading a pass for striker Cho Gue-sung behind the defense.

Goalkeeper Patiwat Khammai moved out of his position in an ill-advised attempt to stop the shot, and Cho rolled the ball diagonally past the helpless goalkeeper.

Lee Jae-sung of Korea, right, scores against Thailand during the teams' Group C match in the second round of the Asian World Cup qualification tournament at Rajamangala Stadium in Bangkok, March 26. Yonhap

As the ball headed toward the left corner of the net, Thai defender Theerathon Bunmathan momentarily stepped on the ball, before Lee Jae-sung, trailing Theerathon on the play, managed to push it across the goal line.

Korea dodged a couple of bullets late in the first half. Pansa Hemviboon tried to head home a corner taken by Peeradon Chamratsamee in the 39th minute, but the ball sailed wide right of the target. Some four minutes later, Thailand pounced on a Korean turnover and Jaroensak Wonggorn fired a rocket right on target, with goalkeeper Jo Hyeon-woo punching the ball out of harm's way.

Son gave his team some breathing room in the 54th minute, with Lee Kang-in once again setting things up.

Lee's pass to the left wing found Son, who danced past Suphanan Bureerat and took a shot through Patiwat's wickets to make it 2-0 Korea.

Park Jin-seop rounded out the scoring with his first international goal in the 82nd minute. After Kim Min-jae headed down a cross from Kim Jin-su, Park struck the ball home with his right foot.

Lee and Son were the two principal figures in a controversy that surfaced after Korea's semifinal elimination at the Asian Football Confederation Asian Cup in Qatar last month. They were found to have been in a scuffle over a game of table tennis the night before Korea lost to Jordan, with Son sustaining a dislocated finger. Lee later visited Son in London to apologize and then stood in front of cameras to do so for fans and teammates upon reporting to national team camp last week.

This was Korea's first clean-sheet win since they blanked Iraq 1-0 in a friendly on Jan. 6. They had conceded at least one goal in seven straight matches after that.

Korea scored their three goals on four shots on target, and had nine shot attempts overall. Thailand had five shot attempts and two on target. (Yonhap)