Upon graduating from
Kansai University where he played on the varsity team, Sasaki signed his first professional contract with the
Blacktown Spartans of the
National Premier Leagues in Australia. He played with them from 2014 to 2016, when the club were relegated. In January 2017, Sasaki signed with
Philippines Football League club
Global Cebu. He made his debut on 24 January in a
2017 AFC Champions League qualifying play-off match against Sinaporean side
Tampines Rovers. He scored his first goal for the club 5 April in a
2017 AFC Cup match against Indonesian side
Johor Darul Ta'zim. On 20 February 2018, Sasaki signed with
Hong Kong Premier League club
Rangers. He scored his first goal for the club on 4 March in a 2–2 draw against
R&F. Following Rangers' relegation to the
Hong Kong First Division, Sasaki joined
Pegasus on 2 July 2018. On 8 April 2020, Sasaki agreed to a mutual termination with Pegasus after the club decided to cut costs due to the
2020 coronavirus pandemic and the subsequent suspension of the
2019–20 season. On 2 May 2020,
Southern announced the signing of Sasaki. ==Honour==