Ricardo Sanchez is out as Caroline Wozniacki's coach after just two months on the job, TENNIS.com has learned. Sanchez was coaching the 20-year-old Dane along with her father, Piotr, but it appeared during practice sessions at the Australian Open that Piotr was for all intents and purposes still running the ship. Wozniacki lost her No. 1 ranking during the Australian Open and has fallen to No. 4, behind No. 1 Victoria Azarenka, No. 2 Petra Kvitova, and No. 3 Maria Sharapova.

Sanchez also coached former No. 1 Jelena Jankovic in 2011.

Wozniacki will not hire another coach, at least for the time being, but may go back to occasionally working with adidas player development coaches Sven Groenefeld and Mats Merkel.

The Danish newspaper Ekstra Bladet will have details on the separation in its Wednesday edition, and will quote Piotr as saying that Caroline did not get enough inspiration from Sanchez's coaching and that Sanchez could not find a place to fit into the father and daughter's longtime coaching relationship.

—Matt Cronin