Chelsea boss Frank Lampard praised Christian Pulisic after their 4-2 win at Burnley.
The forward, who has struggled to settle in England up to this weekend, scored twice in the opening 45 minutes at Turf Moor, his first a wonderful, driving solo effort, before rounding off a first career hat-trick with a header in the second half.
Willian added a fourth before goals from Jay Rodriguez and Dwight McNeil took some of the shine off this Chelsea win.
"I'm absolutely delighted for him," Lampard said. "A lot of talk around Christian for the big price tag, the fact he's quite rightly a star in his country and plays for the US so well, so you get asked questions about it. I'm delighted to see him do that today. I know the backstory and the pressures of a move like that. I also know he played for his country through the summer and had one week break this summer to come back after that. Then you get the pressure of can you settle in the Premier League.
"I know what a good player he is, I see that close-hand. There are things he has to learn and improve because he's just turned 21, it's the same with all young players. There are things that he's going to work on and I think he knows it and he knows that I'm driving that daily in training. The way he's trained in the past few weeks, and the impact he's had when playing, he's said to everyone 'here I am' and what talent he does have. I'm really pleased for him today.
"It's what we need from all our attacking players; to be a threat, to play like that, have a ruthless edge about how they finish and he showed the full package today.
"When you talk about the Premier League one thing there is is physicality, particularly at places like Burnley. When he moves the ball so quickly like he can do, he can cause a lot of problems. It's a great thing to watch when people have balance like that. The first goal when he waits, then a step over and then moves away again from the player, that stuff is brilliant. I hope it gives him the confidence that it should do, and I'm pretty sure it will do, that will do him great going forward."
