He signed a one - year contract extension at the end of the season .
Jervis was a 71st - minute substitute , replacing Adam Rooney , as Birmingham drew 1 -- 1 away to Chelsea in the fifth round of the FA Cup .
Jervis signed a one - year contract extension at the end of the season .
Jervis was a 71st - minute substitute , replacing Adam Rooney , as Birmingham drew 1 -- 1 away to Chelsea in the fifth round of the FA Cup .