[1] On 26 February 2015, at the age of 16, Salo made his Liiga debut playing with Vaasan Sport during the 2014–15 season.
[3] In the midst of the 2020–21 season, while leading the Swedish club, Örebro HK of the Swedish Hockey League (SHL), in assists and scoring from the blueline, Salo was signed to a two-year, entry-level contract with the New York Islanders on 13 February 2021.
[4] In the 2021–22 season, Salo was recalled from AHL affiliate, the Bridgeport Islanders and made his NHL debut with New York on 20 November 2021, which coincidentally was also the first ever game played at UBS Arena.
[5] He recorded his first NHL point, a primary assist on a second period power play goal, on 16 December in a home game against the Boston Bruins.
[6] On 14 June 2024, Salo signed a two-year contract with the Malmö Redhawks of the SHL.