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Chelsea matches where Walter Mazzarri was opposition manager/coach
| Date | Venue | Opponent | Score | Comp |
| 21/02/2012 | San Paolo | Napoli | 1-3 | UEFA Champions League |
| 14/03/2012 | Stamford Bridge | Napoli | 4-1 | UEFA Champions League |
| 20/08/2016 | Vicarage Road | Watford | 2-1 | Premier League |
| 15/05/2017 | Stamford Bridge | Watford | 4-3 | Premier League |