Juventus have announced on their official website that Leonardo Bonucci and Alessandro Matri have signed new contracts until 2017.
Both players have been first-team regulars at Juventus since Antonio Conte took over at the club in the summer and have decided to add two years to their previous deals, which were due to expire in 2015.
The move comes just two weeks after Paolo De Ceglie also signed a new contract with Juventus until 2017 after becoming an important member in Conte's squad since the start of the calendar year.
Bonucci, who scored the first goal in Sunday's 3-0 victory against Napoli, arrived at Juventus in 2010 from Bari, while Matri moved to Turin in January 2011 from Cagliari.
The Bianconeri are currently second in the Serie A standings, two points behind leaders AC Milan.