He was signed by Liverpool manager Matt McQueen in February 1928 for £4000 and made his debut on 11 February 1928 at Fratton Park in a Football League First Division match against Portsmouth, which ended with Portsmouth beating the "Reds" 1–0. His first goal came almost two years later on 13 December 1930 when he scored a first-minute goal at Highbury in a 1–1 draw with Arsenal. He was quoted in a 1929 newspaper article explaining in some detail his philosophy on the role of half-backs in football, and in a 1931 article he praised the captaincy qualities of Anfield teammate James Jackson – by this time Morrison was Jackson's deputy in the role. As at St Mirren, he was an near-constant presence in the Liverpool team between his arrival and summer 1934.