According to transfer expert Fabrizio Romano, the Blues are pushing to sign the 19-year-old prospect.
Casadei is a central midfielder who has been in the Inter Milan youth system since 2019, although he is yet to play a senior game for the club. The prospect has scored 17 times and given five assists in 40 U-19 games in the 2021-22 season.
The midfielder is an extremely promising asset for the Nerazzurri, but only has two years left on his current contract.
Chelsea have already signed one wonderkid this summer in the form of Aston Villa midfielder Carney Chukwuemeka, although both N'Golo Kante and Jorginho's contracts expire next summer.
This means that the west London club will soon need to revamp their midfield. Although they still have the likes of Conor Gallagher and Billy Gilmour to break into the first team.
Arsenal are in need of a new central midfielder to offer cover for the likes of Granit Xhaka and Thomas Partey. The latter has suffered numerous injury setbacks during his time at the Emirates Stadium.
Former Chelsea and Arsenal defender believes Mikel Arteta could be in trouble if he doesn't meet his top-four target
William Gallas played a combined nine seasons for the two London powerhouses during the 2000s and finished in the top four with Arsenal in all of his campaigns there.
The Gunners haven't played in the Champions League since 2017 and Gallas believes that is absolutely not good enough for a club of their stature. The former France international was asked by Genting Casino if Mikel Arteta's job could be in jeapordy if they fail to make the top four again, to which he replied:
"Of course, he will be in trouble. Arteta has been asked to make the top four and he didn't do it last season. If Arsenal don't play in the Champions League next season, it would cause a lot of drama. They have to have a great season, possibly win the Premier League, but definitely to qualify for the Champions League.
"They have just bought new players, it's in the hands of Arteta and the players. It will be a big problem for all of them if they don't do their job to qualify in the Champions League."