Nick Kyrgios reacts to Daria Gavrilova's racquet-hurling eruption.
Gibson was the "Jackie Robinson" of tennis, says USTA President Katrina Adams.
The Swiss was joined by Serena Williams, who took the Sportswoman of the Year award.
Former No. 1 tuning up in practice.
Signs of encouragement greet Serena in California.
Borna Coric concedes his career trajectory has not met his aims.
Rafa Nadal Tennis Centre scheduled to open in November 2018 in Costa Mujeres, Mexico.
