Chelsea manager, Enzo Maresca, has reacted to their 2-1 defeat to Servette in the second leg of their UEFA Conference League play-off.
The Blues had won the first leg 2-0 at Stamford Bridge last week.
And although they took the lead in Switzerland through Christopher Nkunku, they ended up losing.
However, Chelsea qualified for the group stage, thanks to a 3-2 aggregate result.
“I think the first half an hour was comfortable and we had three or four chances to make it 2-0.
“Then we concede the goal and it’s normal to suffer a little bit. I was very worried about this game.
“For them, it’s probably their biggest game of the season,” Maresca said.