Cesar Azpilicueta, the Spanish defender, has officially signed a one-year contract with Atletico Madrid following his departure from Chelsea.

The 33-year-old Azpilicueta had an impressive career at Chelsea, making a remarkable 508 appearances since joining the club from Marseille in 2012.

During his time at Stamford Bridge, Azpilicueta played a pivotal role in the team's success, winning a total of nine major honors. He captained the side to victories in the 2019 Europa League, 2021 Champions League, and 2021 Club World Cup finals.

In an Instagram post, Azpilicueta, affectionately known as "Dave" to the fans, expressed his emotions about leaving Chelsea, stating that it was the most difficult letter he has ever had to write. He wanted to be the one to personally share the news with the supporters.

"This is, without doubt, the hardest letter I have ever had to write, but I want to be the one to share this with you.

"After 11 incredible seasons proudly keeping the blue flag flying high, the time has come for me to leave Chelsea.

"Our journey together started on August 24, 2012. After waiting impatiently to travel to London, my first day as a Chelsea player finally became a reality.

"From the first moment I wore the blue shirt, I felt right at home.

"I will always remember the butterflies in my stomach as I looked at all the trophies and successful moments posted on the wall of the training ground, a success that a young Azpi wanted to emulate.

"I could not have imagined to be here today after 508 appearances, winning nine trophies and becoming your captain.

"Adriana and I arrived in London as a young couple and we are leaving as a family of five, with our kids having been born and raised in England.

"Our bond with the city and the club will remain forever."

View this post on Instagram A post shared by César Azpilicueta (@cesarazpi)

Cesar Azpilicueta, with one year left on his contract, has decided to return to his home country and join Atletico Madrid under the management of Diego Simeone.

Azpilicueta now joins a growing list of players departing the Premier League side this summer, including Kalidou Koulibaly, Mateo Kovacic, Edouard Mendy, Kai Havertz, Ruben Loftus-Cheek, N'Golo Kante, and Mason Mount.

A statement from Chelsea read: "Azpilicueta will always retain the gratitude of those at Chelsea for his crucial role on and off the pitch during such a successful period for the club.

We are bidding an emotional farewell to a Chelsea great. Thank you for everything, @CesarAzpi. 💙 pic.twitter.com/wHDcALJX5m— Chelsea FC (@ChelseaFC) July 6, 2023

"Congratulations and good luck, Cesar. We'll be forever grateful."