 After a freak groin injury kept Hammell sidelined for five months of the 2014–15 season, he made a timely return towards the end of season as the club were battling to avoid relegation.He eventually helped the club retain their Premiership status after Motherwell defeated Rangers by an aggregate scoreline of 6–1 in the Scottish Premiership play-off final.On 5 January 2018, Motherwell announced that Hammell would retire at the end of the month to take up the role of the club's Academy Director.