Giroud collected three winners' medals during his time at Stamford Bridge. The forward helped the Blues in winning the FA Cup, Europa League and Champions League titles.
The 34-year-old is now looking forward to a new journey with the Italian giants.
He will join a forward line that already consists of Zlatan Ibrahimovic, making this one the oldest front pairings in European football…
The Gunners, meanwhile, have set an asking price of £15million.
A day after signing the 'Polish Messi, Liverpool have also secured the signature of the next Jerzy Dudek.
Fabian Mrozek joined the Reds last year and has been involved with the club's youth set-up.
The 17-year-old has now bagged his first professional contract, following in the footsteps of his compatriot Mateusz Musialowski.
Speaking of goalkeepers, Burnley are expected to announce the signing of Wayne Hennessey.
The 34-year-old departed Crystal Palace as his contract with the London-based club came to an end.
Despite interest from Chelsea, it seems the Welsh international is north-bound as Burnley look to strength ahead of the new season.
Gareth Bale celebrated his 32nd birthday on Friday. Question is, where's the forward going to be playing come the start of the season?
As things stand, the Welsh star is expected to return to Real Madrid.
That will come as a disappointment for Tottenham faithful who enjoyed watching the Welshman during his loan spell in London last season.
New Spurs boss, Nuno Espirito Santo, ended speculation over Bale's future at Tottenham saying: "He [Bale] will not be part of our squad."