Parting is poignant for Garbiñe Muguruza. A champion for all surfaces, Muguruza closed the curtain on her brilliant career today. Former world No. 1 Muguruza announced her retirement from the pro tour at age 30. An aggressive baseliner, whose flat strikes down the line made her a bold and explosive shot-maker and risk-taker, Muguruza captured 10 career championships, […]