Callum Davidson has yet to make his first team debut.
Seasoned professional Callum Davidson left Preston North End towards the back end of the 2010-11 season after almost seven years with the Lilywhites. The experienced left back agreed to end his contract at Deepdale following a run of injuries which prevented his contention for senior action. Despite set backs, North End's former captain featured regularly at the beginning of the 2010-11 campaign scoring three goals from the spot. He joined Preston in the summer of 2004 from Leicester City before going on to make over 150 appearances in all competitions for North End. Callum returned to Scotland and signed for St Johnstone in May 2011 - the club where he started his professional career 17 years earlier.
David Moyes was swiftly appointed as Sam Allardyce's replacement as Sunderland manager on Saturday.
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The new Premier League season gets under way on August 13 with the big guns looking to right the wrongs