24-year-old Sloane Stephens won the first major title of her career in grand style after defeating Madison Keys 6-3, 6-0 in the final of the 2017 U.S. Open on Saturday. The American tennis player who was ranked as low as 957th six weeks ago, having only returned from 11 months out with a foot injury at Wimbledon, ranked 83rd, beat 15th seed Keys 6-3...