Who knows whether or not uncle Roman Abramovich and Mourinho will decide to cut the cord on Blues captain John Terry this summer, but if they do, Gary Cahill is an excellent option to have to plug in at left center-back.
According to The Guardian, former Chelsea midfielder Claude Makelele claims Terry was part of the reason Mourinho left Stamford Bridge in 2007.
Terry has been linked to moves to clubs such as Monaco and Galatasaray, as The Telegraph reports, and has asked for talks with Mourinho in hopes of getting a contract extension and staying with Chelsea until his retirement.
As he showed last season with Real Madrid and goalkeeper Iker Casillas, Mourinho lets the players know who's in charge and said on the Spanish TV show Punto Pelota (h/t Daily Mail):
"I am a coach who looks for a meritocracy. Whoever I think is best must play—without looking at status or the past."
The Mirror reports that Mourinho and Chelsea have shown an interest in Porto center-back Eliaquim Mangala, who, if acquired, may be the guy to essentially send Terry packing. But having a now-experienced Cahill to turn to will make that potential decision that much easier if management decides to go that route.
The 27-year-old Englishman seldom gets the kind of credit he deserves from the sometimes rabid Chelsea masses, but he proved he can score the timely goal several times last season, and his save in the closing seconds of the Europa League final against Benfica was simply a cup-winner.
Under Mourinho's guidance, Cahill could really thrive and become a regular starter at center-back and start to get some of the respect he deserves.