Michy Batshuayi says he was struck by Chelsea's desire to achieve success after just one day at the club.
The Belgium forward completed a £33.2m move to Chelsea from Marseille during Euro 2016 and signed a five-year deal at Stamford Bridge.
He has since linked up with his new team-mates following a short break and claims he has joined a club desperate to win silverware.
Chelsea finished 10th in the Premier League last season after a miserable campaign that saw them briefly flirt with the relegation zone and Jose Mourinho lose his job as manager.
"Just being at the training ground for one day I can see it's very big and you feel you've joined a club that really want to win. Everything is new and that is exciting," he told Chelsea magazine.
Batshuayi travelled with the rest of the Chelsea first-team squad to the United States on Sunday as they prepare to step up their pre-season programme ahead of the new Premier League campaign.
The 22-year-old is excited at the prospect of playing under new Chelsea head coach Antonio Conte and says he has fulfilled a "childhood dream" by moving to the club.
"It's a magnificent feeling. It feels fantastic to be here, it's a childhood dream for me so I'm very happy," he added.
"It's a great opportunity. Conte is a manager who works very hard and likes people to work hard for him as well. I am very pleased to come and play for him here at Chelsea."