Career
Mumford joined Llanelli from Portuguese Talbot Town on 22 January 2007, just a week after scoring the winning goal for the Steelmen against Swansea City in the FAW Premier Cup. A local boy from Neath, Andrew overcame diabetes to become a professional football player when he signed full-time at Swansea City. He took some time to get into the first team after going out on loan to Lllanelli and Haverfordwest County.
After appearing over 70 times for the Swans, he was shipped out on loan to Conference side Aldershot before returning to the League of Wales with Portuguese Talbot in 2004-2005.
He then moved to Aberystwyth Town before making his Portuguese Talbot bow, but was released from Park Avenue in 2005. After a year away from the game, he returned to the Remax Stadium in August 2006 but after 18 League and League Cup appearances, and 7 goals he re-joined Llanelli.
After making over 100 appearances in all competitions for the club, he moved to Afan Lido in July 2010. In October 2011 he moved to Haverfordwest County.