In the spring of 2001 he was transferred to Górnik Zabrze for a nominal fee. At Górnik, Andrzej Niedzielan finally found his stride. After playing for one and a half seasons he was sold to Dyskobolia Grodzisk. At Dyskobolia his career took off, and after one year he received an offer from NEC. After three year at NEC he returned to Poland with Wisła Kraków for two seasons, and on 24 July 2009 signed a contract with Ruch Chorzów. He made his debut for Ruch in a match against Wisła Kraków on 1 August 2009. On 29 August in a 2–0 victory over Polonia Warszawa he scored his first goal for Ruch. On 6 March 2010, he suffered a zygomatic bone injury.
