Ki Sung-Yeung has admitted that he does not know where he will be playing his football next season.
"I don't know if I will be playing here next season," the South Korean told reporters.
"I've no idea what will happen in the future but right now I am very happy playing for Sunderland.
"Since Gus Poyet came in, we have improved with and without the ball and are a lot more confident than we were."
Ki's deal with Swansea expires in the summer of 2015.