The Blues beat FC Salzburg 2-1 on Tuesday night.
Goals from Kovacic and Havertz sent the Blues to the Champions League knockout stages.
Both players came off the bench in the draw against Brentford.
Aubameyang came off the bench in the draw against Brentford.
Many Chelsea stars will be involved in this year's World Cup.
Kepa kept another clean sheet for the Blues.
The Blues drew 0-0 against the Bees.
Chelsea drew against fellow west London side Brentford.
Chelsea will face Brentford on Wednesday night.
Kepa has now kept four consecutive clean sheets for Chelsea.
Chelsea have now kept four clean sheets in a row.
Zakaria joined Chelsea on Deadline Day in the summer.
Chelsea will make the short trip across west London to face Brentford.
Mount scored twice at the weekend against Aston Villa.
Mount was named as the Man of the Match against AC Milan.
Tomori was sent off for his challenge on Mount in the first half.