Thomas was seventeen years and 71 days last Saturday and his being used in the FA Cup tie made him the youngest ever City player to appear in the FA Cup since Dennis Mortimer, who was three months short of his 18th birthday, played against Liverpool in January 1970.
Jonson Clarke-Harris is the club's youngest ever player and was sixteen years and twenty days old when he featured against Morecambe in the League Cup earlier this season.
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