 During the 2002 summer transfer market, Chimenti was purchased by Juventus, to serve as a back-up for the world's number one ranked goalkeeper, and Italian International, Gianluigi Buffon, replacing former back-up Michelangelo Rampulla.In his first season with the Turin based club, Chimenti made 4 Serie A appearances as Juventus won the title, and also appeared in Juventus's second-round UEFA Champions League defeat to Manchester United, at Old Trafford; Juventus went on to reach the final of the competition, only to lose out to domestic rivals A.C. Milan on penalties.He backed these appearances up with 2 more appearances the following season in the league; although Juventus finished in a disappointing third place in Serie A, Chimenti featured in the club's run to the 2004 Coppa Italia final, only to be defeated by Lazio, and even made two appearances in the 2003–04 UEFA Champions League.