 Born in Stratford, London, Warner started his profession career with Hereford United as a 17-year-old, going on to be voted young player of the year and being selected for the Welsh U18s before breaking a leg.He then moved on to Tamworth where he accomplished such things as reaching the FA Cup second round and winning promotion to the Football Conference playing over 330 games.He also featured in the team that played against Burscough in the FA Trophy final at Villa Park.