/Courtesy of Swansea City

Ki Sung-yueng made a surprise debut for Swansea City on Wednesday (Korean time) at the English Premier League club's Liberty Stadium in a game against Barnsley in the second round of the League Cup.

Wearing a No. 24 jersey, Ki started as a central midfielder and was substituted 76 minutes into the game.

Manager Michael Laudrup expressed his satisfaction with Ki's performance.

With a goal from Danny Graham and two goals from Luke Moore, Swansea beat Barnsley 3-1 to advance to the third round of the competition.