David Unsworth turns down Sligo Rovers managerial role
Former Preston caretaker manager David Unsworth has turned down the chance to manage League of Ireland side Sligo Rovers, BBC Sport understands.
Rovers are without a manager to League Two side Accrington Stanley.
The 38-year-old was recently alongside veteran midfielder Graham Alexander.
Unsworth was also believed to be among the front-runners for the Accrington job prior to Cook's appointment.
The former defender had a successful playing career, mainly at Everton where he made over 300 league appearances in two spells, winning his one and only full England cap in a 2-1 win against Japan in 1995.
He spent the 1997-98 season at West Ham, then famously signed for Aston Villa before re-signing for Everton in the same month in 1998, remaining there until 2004.
Spells at Portsmouth, Ipswich, Sheffield United, Wigan, Burnley and Huddersfield followed before he retired from playing to concentrate on coaching.
Unsworth's last game in joint charge of Preston, of former Stevenage boss Graham Westley, at home against Wycombe, and he has since left the club.