Due to missing most of the beginning half of the 2011–12 Premier League season, Essien was unable to gain favour with manager André Villas-Boas. On 21 February 2012, during a Champions League match against Napoli, Villas-Boas left Frank Lampard, Essien and Ashley Cole on the substitutes' bench. Chelsea lost 3–1 and the club's technical director asked for an explanation of the team selection on behalf of Chelsea owner Roman Abramovich. On 4 March 2012, following a 1–0 league defeat against West Brom which left Chelsea three points adrift of Arsenal in the battle for fourth place in the Premier League, Villas-Boas' employment was terminated by Chelsea, with assistant manager Roberto Di Matteo being appointed as caretaker manager on an interim basis until the end of the season. Di Matteo immediately showed favour towards veteran Chelsea players like Essien, Lampard and John Terry. Subsequently, Essien started in Chelsea's second leg champions league fixture against Napoli, with Chelsea winning 4–1 – and 5–4 on aggregate – in an entertaining match allowing Chelsea to advance to the quarter-final, where they met Benfica. Essien subsequently remained an unused substitute in Chelsea's Champions League run, culminating in "the Blues"' victory over Bayern Munich in the final, making Chelsea the first London-based club to win the title.