Noel Bailie, for Linfield 950+
As stated previously Noel Bailie for Linfield in the Irish League. Has now made 996 professional appearances and all for the one club.
Well I think John Trollope made 800+ appearances for the club Swindon Town and similarly Terry Paine also made about 800 appearances for English club Southampton.
Well, if we're not only talking british teams, I believe Paolo Maldini made something like 902 appearances for AC Milan... I'd love for Giggsy to beat that though!