Claude Puel
On 20 June 2017, Appleton was confirmed as the new assistant to manager Craig Shakespeare at Premier League club Leicester City, signing a three-year contract. After the dismissal of Shakespeare in October 2017, Appleton took over as caretaker manager for two matches, both Leicester victories, before the appointment of Claude Puel. On 30 June 2018, it was announced that Appleton had left his position at Leicester with immediate effect following a restructure of the coaching staff.