*Club domestic league appearances and goals, correct as of 22:15, 1 December 2024 (UTC) ‡ National team caps and goals, correct as of 17:15, 17 April 2023 (UTC)
Summers joined Celtic at the age of seven. He signed his first professional contract with the club in June 2020,[5] which was extended in September 2022.[6] On 18 March 2023, Summers was named on the bench for Celtic's 3–1 win against Hibernian.[7] He made his Celtic debut on 16 April 2023, substituted on in the 88th minute, in a 4–1 win away to Kilmarnock.[8]
International career
Summers was included in the under-21 squad for the first time in March 2023.[9] He made his debut on 23 March 2023 in a friendly match against Sweden.[10][11]