Ulsan Tigers star Lee Chun Soo admits he regrets returning to the K-League after a difficult spell in Spain.

"Coming back from Spain to Korea was a big mistake," Lee said. "At that time, I had offers from teams in France and Germany. Seol Ki-hyeon thought about returning a few years ago but he stayed and was able to move to Reading.

"I really thought that this season he I would move abroad.

"Not only to England but Ajax, Glasgow Rangers and German clubs have been interested but nothing has happened.

"Time is running out but at least soon I will know if I am going or not."