Seol was called up for the South Korea national team for the 2023 AFC Asian Cup. He underachieved in the group stage, and conceded a penalty against Malaysia.[3] He provided an accurate cross, assisting Cho Gue-sung's equalising header in second-half stoppage time of the round of 16 match against Saudi Arabia. He showed tremendous workrate by moving 15.54 km in the quarter-final match against Australia and was selected for the team of the matchday after the match,[4] although he took a rest for only two days after the round of 16.[5] South Korea was eliminated in the semi-finals by Jordan, but found solace in a new talented full-back.[6]
Style of play
Seol had played as a winger until his university days, but changed his role to a full-back at the start of his professional career.[7] He is a right-footed full-back, but could be deployed on both left and right flank.[8]