NEW YORK — Novak Djokovic could not find his keys.
Alone in a parking lot outside Arthur Ashe Stadium at about 2 a.m. Monday, a handful of hours after beating Roger Federer in the U.S. Open final for his third major title of 2015 and 10th overall, there stood Djokovic, unable to unlock the car he'd been using to drive himself between the tournament site in Queens and the hotel near Central Park where he stayed with his wife and their 10-month-old son the past two weeks.
Turned out, he said, a member of his entourage accidentally grabbed the keys while gathering Djokovic's bags.