Does electronic line-calling event mark the beginning of the end for lines people?
Australia suffers stinging Davis Cup semifinal setback.
World No. 1 aims for longevity at the top.
Couple weds 10 months after engagement.
Brazilian apologized, denied his action was a racist gesture.
The 25-time Grand Slam champion believes women's tennis will evolve.
"Bernie has lost his way," says Australian No. 1.
