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The Academy product climbed through the ranks of the Kirkby set-up to make two senior appearances for the Reds during the 2012-13 season.
Coady debuted away at Anzhi Makhachkala in the Europa League before making a substitute appearance against Fulham towards the end of the campaign.
He went on to represent Sheffield United, Huddersfield Town, Wolverhampton Wanderers, Everton, Leicester City, Wrexham and Charlton Athletic in his career.
The 33-year-old, who was capped 10 times by England, announced his retirement via social media on Friday.