Born in Mongaguá, São Paulo, Alison joined Santos' youth setup in 2004, aged 11. On 10 September 2011 he made his professional debut, starting in a 1–0 home success over Cruzeiro.[1] However, after only two minutes in field, he had to be replaced due to a knee injury, which kept him sidelined for six months.[2]
Alison later suffered the same injury when he was due to return, only appearing in a match with the under-20 team in January 2013.[3] He was definitely promoted to the first team late in that month, after winning the Copa São Paulo de Futebol Júnior.
On 16 August 2013, after retaining a starting spot under Claudinei Oliveira, Alison renewed his link with Santos until December 2017.[4] However, he suffered an injury during the latter stages of the campaign, and only returned in March 2014.
On 18 July 2014 Alison scored his first professional goal, netting the first of a 2–0 home win against Palmeiras.[5] In February of the following year, however, he suffered another serious knee injury, being sidelined for eight months.[6][7] He returned to the fields on 29 October, coming on as a late substitute in a 3–1 home win against São Paulo FC.[8]
A backup to Thiago Maia and Renato, Alison only appeared rarely in 2016 before suffering a knee sprain. He went through an arthroscopy in July,[9] being declared fit to play in September.[10]
On 20 January 2017, Alison was loaned to Red Bull Brasil until the end of the 2017 Campeonato Paulista, in order to regain match fitness.[11] Upon returning, he started to feature regularly with the first team under Levir Culpi, becoming a starter after the departure of Thiago Maia to Lille OSC.
Alison made his Copa Libertadores debut on 10 August 2017, starting in a 1–0 home win against Atlético Paranaense. On 5 December, he renewed his contract until the end of 2022.[12]
On 10 November 2020, it was announced that Alison and a further six first team players tested positive for COVID-19.[13] He tested positive for a second time the following 18 January.[14]
Al-Hazem
On 2 August 2021, Saudi club Al-Hazem reached an agreement with Santos for the transfer of Alison.[15] Santos announced his departure eleven days later,[16] and he was announced by his new club three days after that.[17]
On 20 May 2022, Alison terminated his contract with the club after failing to receive wages, but was still sidelined due to a knee injury.[18]
Alison became a first-choice in late May 2023, after Fernández's poor form, but suffered another knee injury in June, being sidelined for the remainder of the year.[21] On 4 December, his contract was extended for a further season.[22]
Londrina
On 6 January 2025, Londrina announced the singing of Alison on a one-year contract.[23]
International career
Alison was a part of the Brazil under-20 side in the 2014 Toulon Tournament,[24] playing in all five matches of the competition as the team won their 8th trophy in the competition. Earlier in that year, he was also called up to the under-23s for a training period, but Santos deemed him unavailable due to his commitments at the club.[25]
On 15 June 2021, Alison was named in the preliminary 50-man list for the 2020 Summer Olympics,[26] but did not make it to the final squad.
^"Alison é o novo reforço do Tubarão" [Alison is the new addition of the Tubarão] (in Brazilian Portuguese). Londrina EC. 6 January 2025. Retrieved 10 January 2025.