It has been brought to the club's attention that Sean Newton, the scorer of Droylsden's two goals in last night's FA Cup replay, may not have been eligible to play in the game.
According to the FA's own website he is recorded as down to serve a suspension from 23 December 2008, the same date as the second round tie played at the Butchers Arms ground.
Chesterfield FC has asked the FA to look into the matter.
Check out www.thefa.com for suspended players list.