He was invited to train with Rovers this week but the Daegu FC star believes he is not ready just yet.
"It is flattering to know that my services are wanted elsewhere," he told the Korean media.
"But I need to be playing regularly to continue my development. There is little point joining a great team but having to spend most of the time sitting on the bench.
"There is still a lot of room for improvement in my game so we will see what the future holds."