Antonio Conte leaves Juventus

Juventus concerned over Conte future (2:02)

Beppe Marotta, sporting CEO of Juventus warns fans they may lose their manager Antonio Conte. (2:02)

Juventus have announced that coach Antonio Conte has parted company with the Serie A champions.

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Conte, whose contract was due to expire in 2015, was appointed Juventus coach in 2011 and led the club to three straight Italian league titles.

La Gazzetta reports the 44-year-old has left the Bianconeri due to a lack of investment in new players so far this summer.

It has also been reported that key midfielder Arturo Vidal could be sold to Manchester United during the current transfer window.

Conte said: "I have decided to terminate my contract with Juventus. I have matured with time and my feelings led me to make this choice. It may be more difficult to keep winning with Juventus.

"An enormous thank you for what you have given to me as a player and as a coach. I have always been close to you. I want to say that the journey taken in recent years has been historic."

Former AC Milan coach Massimiliano Allegri and ex-Inter Milan, Manchester City and Galatasaray boss Roberto Mancini have been touted as his possible replacement.

Juventus president Andrea Agnelli said on the club's official website: "Dear Antonio, you have been a great leader for our team and today's news saddens me immensely.

"I think about the three years we spent together, the three years in which we rewrote this club's history: three Scudetti in a row, two Italian Super Cups, and perhaps more importantly a period of exponential growth.

"Yet in the face of sentiment and personal feelings even a president needs to take a step back. Barely two months have passed since our last major success and Juventus must continue on its path.

"We'll start again from zero. Zero points in the table, just like all the others, and zero wins. But this club has a young management team that is both talented and close-knit, and in these recent years it has found the ambition and determination to achieve its targets.

"Juventus will start again with a squad of highly talented, professional footballers who will give their all for the new coach and go on writing this club's present and future.

"You have been a part of Juventus' history and I know that whatever choice you make, hearing of a Juventus victory will always bring a smile to your face."