The Korean has completed his transfer to the Liberty Stadium, putting an end to the Swans' drawn-out pursuit of the midfielder, as he looks to fill the boots vacated by Joe Allen
The South Korea international has been a long-term target for the Premier League side
“When I look at Swansea I see a club that is growing and growing, and the style here is very attractive to me,” he told the club's official website.
“Last year I watched them a lot in the Premier League and they did things very differently to a lot of the other teams. They wanted to keep the ball and pass it around, which I love to do. When they didn’t have the ball they worked so hard to get it back quickly.
“It was very impressive, and I think I can grow as a player here and help the club move forward.
“The manager is another big attraction. I remember watching him when I was younger and I was amazed by how good he was.
“Now I want to learn from him in order to help me become a better player. I learned a lot at Celtic – it helped me become more of an all-round player.
“This is something I have dreamt about since I was a child – playing in the Premier League against the best players in the world. I can’t wait to play my first game.”
More to follow...