In June 2007, West Ham United signed Scott Parker for a £7 million fee. Due to injury, he did not make his first team debut until 26 September 2007 in the 1–0 League Cup victory against Plymouth Argyle. His full Premier League debut came on 29 September 2007 in the 1–0 home defeat to Arsenal, a match which saw Parker sustaining another injury and being substituted for Hayden Mullins at half-time. Parker scored his first goal for West Ham, a last-minute winner in the 2–1 win at Middlesbrough on 22 December 2007.