For Christian Pulisic, scoring a hat-trick on Saturday was a new experience.
"It's actually my first professional hat-trick so I nearly forgot the match ball," he told the Blues' official website. "Luckily my team-mates helped me out!"
While the United States international achieved a first on a personal level at Turf Moor, he also wrote his name into the record books for his club and country.
He became the first American to find the net for Chelsea in the Premier League, with the Blues now having players from 36 nations score for them in the competition.
Pulisic is now Chelsea's youngest Premier League hat-trick scorer, at 21 years and 38 days.
And, after scoring with his left foot, right foot and head at Turf Moor, he has become the first player to net a perfect league hat-trick for the Blues since Didier Drogba against Wigan Athletic in May 2010.
"The goals were amazing," said Pulisic. "It's tough to say which was my favourite. The header was cool but I think I'd have to go with the first one, the left foot. I don't know why.
"These guys are so fun to play with. We have so much energy. Right now we're just enjoying every moment of it."