Chung Young-lee has signed a new contract with Bolton Wanderers to 2013.
The South Korean has made a big impression since arriving at the Reebok Stadium in July of last year from FC Seoul in a £2.2million deal.
The deal comes as a boost to Wanderers at a time when speculation has arisen that the club may have to sell in the wake of their total debt reaching £93m.
Manager Owen Coyle said: "It is terrific that the club are tying down young players like Chung-Yong and are building for the future, particularly given all the things that have been written about us financially."