Five key matches that led to Frank Lampard’s Chelsea departure Updated: January 25 2021, 12.36pm Frank Lampard appears dejected as Chelsea slip to a damaging 3-1 defeat at Arsenal on Boxing Day (Julian Finney/PA Images). Frank Lampard has lost his job as Chelsea boss after a run of five defeats from eight Premier League games. Here, the PA news agency looks at five key results that led to his departure. Chelsea 1 Manchester City 3, Sunday, January 3, 2021 Frank Lampard looks exasperated on the touchline during the 3-1 Premier League defeat against Manchester City at Stamford Bridge. The major catalyst for Lampard’s departure. City were 3-0 up just past the half-hour and could have had five in the first-half alone. Chelsea were worryingly off the pace in 45 minutes where untold damage was done – not just in terms of the result on the day, but also to Lampard’s tenure.