A utility player, Warner began his career in the youth system at Premier League club Southampton and signed his first professional contract in August 1997.[3] He made his senior debut as a 39th-minute substitute for Jason Dodd in a 1–1 draw with Tottenham Hotspur on 10 May 1998.[4] Warner made six appearances during the 1998–99 season, but failed to appear after October 1998.[5] On 2 July 1999, Warner joined newly promoted Second Division club Brentford on a season-longloan, with a view to a permanent move.[6] He made just 15 appearances and returned to The Dell two months early, in March 2000.[7][8] Warner returned to the Southampton first team squad during the 2000–01 season, but failed to make any further appearances before his release in May 2001.[9]
Cambridge United
On 31 May 2001, Warner signed a two-year contract with Second Division club Cambridge United on a free transfer.[10] He made just 16 appearances during the 2001–02 season,[11] at the end of which the Us were relegated to the Third Division.[12] Warner was mostly out of favour with manager John Taylor during the first half of the 2002–03 season and was released on 10 January 2003, in a cost-cutting exercise.[13][14] He made 26 appearances during 18 months at the Abbey Stadium.[10]
^Chalk, Gary; Holley, Duncan & Bull, David (2013). All the Saints: A Complete Players' Who's Who of Southampton FC. Southampton: Hagiology Publishing. pp. 494–495. ISBN978-0-9926-8640-6.
^Croxford, Mark; Lane, David; Waterman, Greville (2013). The Big Brentford Book Of The Nineties. Sunbury, Middlesex: Legends Publishing. p. 318. ISBN9781906796723.