Sunderland midfielder Ki Sung-Yueng says he'll soon show fans his best form.

Ki is on a season-long loan from Swansea City.

"There are differences between Swansea and Sunderland. I have to adapt to a new environment. I have to adapt quickly to this kind of playing style but I like it.

"I like picking out long balls and I like linking the play between defence and attack. I'd like to do that more here than I did at Swansea."