Cardiff City, West Bromwich Albion, Sheffield Wednesday and Luton Town are all among the clubs battling to sign a Leeds United player who is set to be released. The Whites officially published their retained list on Friday afternoon as they confirmed those they do and don’t want to keep for the upcoming season. Liam Cooper, Jamie Shackleton and Cody Drameh are among those to have been offered new deals, while the number of appearances Sam Byram made last season has triggered a one-year extension. Phil Hay says it still remains up in the air as to whether Cooper will sign after he had all but c…