*Club domestic league appearances and goals, correct as of 21:33, 27 November 2024 (UTC) ‡ National team caps and goals, correct as of 16:31, 21 November 2023 (UTC)
Morrison was born in Saltcoats, Scotland, and played for Scottish clubs Rangers and Celtic as a youth player.[2] After some impressive performances with the latter, he was reportedly linked with a move to a number of English clubs, as well as German side TSG Hoffenheim.[3] He was promoted to the Celtic first team squad for pre-season friendlies in Austria and Switzerland in June 2019.[4]
Bayern Munich
Around this time, German champions Bayern Munich made a bid to sign Morrison before Celtic were able to tie him down to a professional contract.[5][6] Despite Celtic's efforts to persuade him to stay, Morrison joined Bayern in August 2019, and later revealed that his main reason for signing was the pathway to the German side's first team that was laid out to him.[4][7] He was also quoted as saying that he initially believed the Bavarian side's interest was "a joke".[8]
Morrison integrated well into Bayern Munich's youth teams, citing coaches Miroslav Klose and Martin Demichelis as great influences on improving his game.[9] In October 2020, he was named among the 60 best young talents in the world by English newspaper The Guardian.[2][10] After Barry Hepburn made the same move from Celtic to Bayern, Morrison was credited with helping his younger compatriot to integrate into the squad.[11]