Adelaide United have signed Korean midfielder Shin In Sup. The 20-year old has signed a two-year deal with the Reds after impressing in a recent trial.

"We're excited about Shin joining the club. He's a great young kid, he's got fantastic potential and we saw that in the two weeks that he spent here and in the match against Perth last Friday," Reds coach Aurelio Vidmar said.

"This will be his first time in a professional environment and we believe he has what it takes to play and perform at this level."

Shin has been playing for Kunkuk University, South Korea's university league seen as the primary breeding ground for players to move into Korea's premier league, the K-League.