"It was important that we just kept the ball moving, I don't think there was any need to react today". "I've been caught out a couple of times with my temper".
Newcastle had been competitive at St James' Park but, after Shelvey's dismissal, Alli tucked away Christian Eriksen's excellent cross to break the deadlock before Davies finished off a fine team move.
"We knew it was going to be a physical game".
Asked if he felt let down, Benitez said: "It's not me, it's everyone". "They didn't make it easy for us and it's a hard place to come".
Walker-Peters, a World Cup victor with England Under-20s over the summer, said: "Playing here, it's a fantastic stadium and most importantly we got the three points, got a good start in the league".
With Dier potentially operating at the back, this would allow Harry Winks to start the game alongside Mousa Dembele in the boiler room. He's a great player and I'm sure he's going to be disappointed.
With 20 minutes left, Ben Davies was found by Eriksen with the Welshman scoring the second goal of the game.
"He knows he has made a mistake and he has apologised but it changes nothing now".
"All I'll say is the rules are the rules and we made a mistake".
Atsu, who joined the Magpies permanently from Chelsea in the summer transfer window after impressing on loan last term, has been trusted by manager Rafa Benitez with a starting berth in their first game of the Premier League.