Arsenal manager Mikel Arteta to BBC Sport: "After the break, we started saying we had to start closing the gap on the top teams and turn draws into wins. Today was the first opportunity and we've done it.
Newcastle manager Steve Bruce speaking to BBC Match of the Day: "I was delighted the way we played in the first half and needed more of it in the second but for some reason, we didn't play in the second half.
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.
Newcastle boss Bruce told BBC Sport: "I think getting to play with Sean was unbelievable. We used to kick each other in the garden growing up so to be on the same team, for our hometown club, and to win against Manchester United, who are a good side, is a bit surreal.
Premier League leaders Liverpool shrugged off an early scare to sweep past Newcastle and maintain their 100% start to the season with another dominant attacking display.
Liverpool manager Jurgen Klopp: "I started enjoying it after 35 minutes when we arrived in the game.