 He was recommended to Brighton & Hove Albion by Brighton's captain, Joe Leeming, who also came from the Turton area.Haworth turned professional with Brighton in late 1909, helped them win the 1909–10 Southern League title, and played in the team that beat the Football League champions, Aston Villa, to win the 1910 FA Charity Shield.He attracted attention from Football League clubs, and signed for Middlesbrough in February 1912 for a fee of £600.