Long-serving defender Adam Jackson has been with the Imps since the summer of 2020.
Jackson arrived at the Imps with EFL and Scottish Premiership experience, enjoying spells with Middlesborough, Halifax Town, Hartlepool United, Barnsley and Hibernian.
He made his debut at centre-half against Scunthorpe United in the EFL Trophy and scored on his first League One appearance for the Imps against Oxford United.
City’s No.5 has racked up over 150 appearances for the club since his arrival, captaining the side on multiple occasions and scoring five times. Jackson signed a contract extension with the Imps in July 2025, keeping him at the LNER Stadium until at least 2027.