By Dan Burnham One ex-Liverpool star missed out on £200,000 after being included in their Champions League final squad – only to be told it was a mistake. Stephen Warnock had made four appearances in the competition in the Reds’ run to the 2005 final in Istanbul, not missing a matchday across the group and knockout stages. He remained unsure if he’d been included to face AC Milan, however. The former left-back, now six years retired aged 42, would find out his fate two days before the match ahead of their travel to Turkey. “I remember running in after the last training session and thinking, ‘p…