Chelsea manager Frank Lampard admitted there will be “bumps in the road” as the Blues lost composure in the second half of their 2-1 win over Lille which saw them through to the last 16.
Tammy Abraham opened the scoring for the home side, tapping in after an excellent team move, before Cesar Azpilicueta doubled their lead before half-time.
But Chelsea were rocked by Loic Remy, who fired in off the crossbar on his return to Stamford Bridge, which set up an unnecessarily nervy last 20 minutes.
And Lampard admitted to a “nervy finish” to a game that his side should have put out of sight of the French visitors.
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Chelsea manager Frank Lampard talking to BT Sport: “It did get twitchy. We need to take our chances better.
“At 2-0 I thought it was not quite done and when Lille scored it made it a more nervy finish to the game than it needed to be.
“I was interested to see our attitude and how we approached the game and it was all there.
“We completely dominated the first half and at half-time we were very comfortable.
“It was then a case of can we push on and in the second half we didn’t manage to do that.
“So it’s going to be a work in progress. With the young players we have in this side there will be bumps in the road. I push them and can be quite hard on them, setting the high standards I want to see them reach, but at the same time I have to be patient.
“Today was a sign of how much work we still have got to do. It should have been a calmer finish to the game and that is the biggest thing, for me, that we need to improve.”