Chelsea returned to winning ways in the Premier League as they beat Watford 2-1 at Vicarage Road on Wednesday night.
The Blues dropped points at home to Man United last weekend and were keen on returning to winning ways against Claudio Ranieri's side.
They suffered an early scare as Tom Cleverley managed to get the better of Marcos Alonso down the right but Joao Pedro's shot at goal was diverted behind for a corner by the Blues defender.
Edouard Mendy was then forced to make a decent save in the fifth minute when a cross pinged off Pedro's knee, forcing the shot-stopper into a reactionary save.
The match was however halted for more than 20 minutes in the 13th minute to allow for a Watford fan to receive medical attention after he suffered a cardiac arrest.
There is a break in play due to a medical emergency in the crowd.— Watford Football Club (@WatfordFC) December 1, 2021
Both teams have left the field.
On resumption, Chelsea threatened first and could have taken the lead in the 19th minute but Mount banged the ball against the upright from a tight angle.
Their first goal of the night came just before the half-hour mark when Rudiger's ball over the top was expertly taken down by Alonso in the box.
The defender then found Havertz who helped it onto Mount who was in space and the England man tucked it past Bachmann to put Chelsea ahead.
Their lead was however canceled just before the break as the clever Emmanuel Dennis equalized with a deflected effort to ensure the match went into the break with the teams all-square.
The second half was a balanced affair as the hosts enjoyed a good spell early on.
Chelsea however grew into the game going into the last 20 minutes, with coach Thomas Tuchel making a number of tactical switches.
It paid off in the 73rd minute as Hakim Ziyech, who was a second-half introduction, finished off a wonderful team goal to give Tuchel's side a deserved lead.
They created more chances in the remaining quarter of an hour, but could not find another goal as the game ended 2-1.
The win ensured they remained top of the table ahead of Liverpool and Manchester City, who won against Everton and Aston Villa respectively.