Gary Cahill of Chelsea
Gary Cahill is set to sign a new long-term contract with Chelsea.Clive Brunskill/Getty Images

Chelsea star Gary Cahill is reportedly set so sign a lucrative new contract with the Blues. He will become the third player in recent weeks to sign a contract extension.

Full-back César Azpilicueta and goalkeeper Thibaut Courtois are two other players who have recently penned new long-term contracts.

Cahill, who joined from Bolton on a £7m ($11.4m, €8.8m) deal in 2012 has little less than three years remaining on his current deal, but Jose Mourinho is supposedly keen on tying the England international down on a long-term deal.

The English defender has become a key player for Chelsea in the last couple of seasons, and has formed a rock-solid partnership with compatriot John Terry at the heart of the Blues defence.

The 28-year-old defender's time with the club has been laden with trophies, having won the Champions League, the Europa League and the FA Cup. All this has led to Cahill being appointed the vice-captain of the Three Lions under Roy Hodgson.

Meanwhile, Mourinho is looking to continue Chelsea's winning start in the Premier League when they take on Swansea City at the weekend, but has praised the team's transfer business and believes that Garry Monk deserved the Manager of the Month award for August.

"We have nine points and we want to have 12, if that's not possible then we want 10 at least," Mourinho said, as quoted on Chelsea's official site.

"They've [Swansea] bought well, invested seriously. Federico Fernández is an Argentinian player, he was on the bench in the World Cup final. (Bafétimbi) Gomis has been a top striker in France, (Gylfi) Sigurðsson went back and is a very good player, so they did well to keep their good players and bring in others to help them improve. They are doing very well and Monk deserved to win Manager of the Month," the Portuguese manager added.