The 29-year-old has been linked with a move to Tottenham as part of a deal for Gareth Bale.
He told South Korean media: “I’m not thinking about leaving at the moment. I’ll think about my future at the end of the season.
“The win (over Wolves) was a satisfactory result and I am happy with my performance.
“My recent form hasn’t been that good so it’s good to see progress.”