 He was a part-time player at Newport and worked full-time at a nearby car auction warehouse before he began to attract interest.Several teams watched him while he played for Newport, including Bristol City, Reading, Stoke City and Swansea City, but instead Green joined Cardiff City in January 2007 for a fee of £10,000 with possible add-ons depending on appearances.Green had played alongside several former Cardiff players at Newport including Nathan Blake, Jason Bowen and Damon Searle.