The No. 5-seeded American will kick off her Miami Open presented by Itau campaign on Friday, hitting the court at what is essentially her home tournament. The 27-year-old trained for years at the ...

When Madison Keys was 10 ... What would keep her motivated? Keys is now ranked a career high No. 5. AP Photo/Vincent Thian Dominic Thiem, the former world No. 3 who won his only major title ...