Mackin signed for York permanently on 22 May 2009 on a one-year contract [REF].
Mackin made his first appearance of 2010-11 in the opening match, a 2-1 home defeat to Kidderminster on 14 August 2010, and was substituted in the 38th minute due to an injury and Foyle said "It looks a bad one and he might need a scan" [REF].