21-year-old Sonny Finch joined the Mariners in the summer of 2026, signing on a three-year deal from South Shields.
Hailing from Houghton-le-Spring, Finch joined the Middlesbrough Academy at Under-13 level and progressed through the club’s youth system before signing his first professional contract shortly after his 17th birthday in August 2022.
Having impressed during first-team pre-season training in Portugal, Finch made his senior debut later that month when he started Middlesbrough’s EFL Cup tie against Barnsley at the Riverside Stadium.
He went on to make six senior appearances for Boro and also featured for England at Under-17 and Under-18 level, making his U18 debut in a 2-1 victory over Croatia in March 2023.
Finch gained further senior experience during a season-long loan spell with MK Dons in 2024/25, making six appearances and scoring his first professional goal in a 5-1 victory away at Harrogate Town.
The forward joined South Shields in January 2026, initially on loan, before making the move permanent later that season.
Finch also has a family connection to the Mariners, with his uncle Jordan Cook having previously represented Town – making 49 appearances in all competitions, scoring eight goals, before leaving the club at the end of the 2019/20 season.
