Aged 18, Busby signed for Manchester City on a one-year contract worth £5 per week on 11 February 1928, with the provision for him to leave at the end of the deal if he still wished to emigrate to the United States with his mother. He decided to stay and made his debut for City on 2 November 1929, more than 18 months after first signing for the Blues, when he played at inside left in a 3–1 win at home to Middlesbrough in the First Division. He made 11 more appearances for City that season, all at inside forward, scoring five goals in the process.