This season marks the first for club chairman
Forrest Li's appointment as
Football Association of Singapore's Deputy President on 28 April 2025. Captain
Hariss Harun, general manager Tan Li Yu were both appointed as part of the four vice-presidents elected while executive director Bruce Liang serves as one of the three council members. On 8 June 2025, Lion City Sailors announced the end of
Ali Al Rina's loan spell, with the Syrian returning to his parent club
Al-Ittihad Ahli. The departures of Spanish defender
Sergio Carmona and
Haiqal Pashia were also announced on the same day following the expiry of their contracts.
Obren Kljajić and
Anumanthan Kumar also departed the club on 10 June.
Bill Mamadou left the club on 12 June 2025, after his contract expiration. He later joined
Thai League 1 club
Nakhon Ratchasima on a free transfer on 14 June. Contract extensions were given to captain Hariss Harun, vice-captain and third captain
Bailey Wright and
Hafiz Nor, and also
Rui Pires. Adib Azahari extended his contract on 27 June. Lion City Sailors signed a three-year partnership agreement
Adidas, becoming the official kit supplier with effect from 1 July 2025. Lion City Sailors made their first signing on 6 July 2025 after announcing
Safuwan Baharudin on a season long loan from
Selangor. After a successful 2024–25 season, head coach
Aleksandar Ranković signed a two-year contract extension on 7 July 2025. Lion City Sailors made their second signing on 8 July after signing loanee
Diogo Costa on a permanent five-year contract. On 10 and 16 July, the club announced that both Croatian goalkeeper
Ivan Sušak and German midfielder
Tsiy-William Ndenge had signed two-year deals respectively. On 17 July, the club announced the signing of two-time
J1 League top scorer
Anderson Lopes on a three-year deal for an undisclosed fee. The Sailors started the season with a 1–4 defeat to
Tampines Rovers, finishing as runners-up in the
Singapore Community Shield.
Kits == Squad ==