Jose Mourinho has been sent off at half-time in the game against West Ham United.
The match has been an eventful one so far in which the Blues are trailing 1-0.
Mauro Zarate scored the opener for the Hammers.
Chelsea missed their equaliser for millimetres. Matic has been sent off to make things worse.
Chelsea assistant manager was sent off during the first half.
But at the start of the second half, Mourinho was seen in the stands.