Christian Pulisic scored a hat-trick to announce his arrival in English football in style as Chelsea beat Burnley for a seventh consecutive win in all competitions.
The 21-year-old American winger scored a 'perfect' hat-trick with a left foot, right foot and headed effort.
He was the difference in an even first half, first of all winning the ball on the halfway line before running all the way and slotting home.
His second was also a break from midfield after Willian won possession.
Burnley were in the game until that stage but Chelsea ran away with it in the second half.
Pulisic headed in from Mason Mount's cross for his first career treble, before Willian blasted home a fourth moments later.
The game was basically over after Pulisic's moments of magic but fans will wonder what could have been had Rodriguez and McNeil's goals - both assisted by 84th-minute substitute Robbie Brady.
Chelsea manager Frank Lampard, speaking to Sky Sports: "This is a really tough place to go and the way we controlled the game, our midfield combinations and movement, was beautiful to watch. I really enjoyed watching them today."
On his handling of Christian Pulisic: "He had a week's break this summer. He arrived for a big price and wanted to come straight back in but at the same time why am I going to throw him in? So I have to do it in the right way and get the best out of him. I'm delighted for him."
On making just one change from midweek: "It's a balance, I always think one, two or three games ahead. But there's an argument that we are doing okay, they are hungry, and I felt one change was enough today. It's important we keep our feet on the ground. We played well but we can play better."
On conceding two late goals: "I will be the first to criticise sloppy goals, and they were. But not tonight because of the way they played, their movement on the ball, there were so many great things to admire. I'm not letting that in the dressing room tonight, we came to a really tough place and won comfortably."