The South Korea star returned to the BayArena, home of his former club Bayer Leverkusen, our opponents in MD3 of the Champions League on Tuesday night (7.45pm).
In-form Sonny - named Premier League Player of the Month for September - played for the Bundesliga side between 2013-15, scoring 21 goals in 62 games before joining us in the summer of 2015.
It's familiar turf for Sonny, while the rest of the squad get used to the BayArena. #COYSpic.twitter.com/XAS5T6zluQ
— Tottenham Hotspur (@SpursOfficial) October 17, 2016
Sonny faced the media before training at the impressive stadium in Leverkusen.