Chelsea manager Frank Lampard, speaking to Match of the Day: "The second half was the most pleasing thing. It was a good test for us today. We changed things a little in the second half and we showed a little more flexibility and creativity.
"We were upbeat, we had urgency, the tempo was good, and that got us the win.
"We want to score goals. You can see the fans - I think they're happy with what they're seeing at the moment. We want more.
"If we want to keep moving up, we can do better. So far this season, though, things are going well."
On Ross Barkley's injury: "It's an ankle injury. We need to assess it and see how bad it is."
Newcastle head coach Steve Bruce, speaking to Match of the Day: "We had a few chances in the first half in particular, but we didn't pick the right pass or the right cross.
"Chelsea have a nice blend of youth and experience at the moment. We didn't weather the storm in the second half.
"We've had a really tough start. We've now got a run of games against teams who are going to be in and around us. Hopefully, we can get a few points."
On Chelsea's goal: "I have to say, I thought it was a foul on Joelinton. When you come to Chelsea you need these things to fall for you. I thought it was a clear and obvious foul on Joe."