Juan Martin del Potro upset Roger Federer 3-6, 7-6 (5), 4-6, 7-6 (4), 6-2 on Monday to win the U.S. Open title. The 20-year-old Argentine denied the top-ranked Federer a sixth consecutive U.S. Open title and won his first career major. The first five-setter in a U.S. Open final in 10 years lasted 4 hours and 6 minutes.
The del Potro optimists have spent the past day stirring up the echoes of 2000, when another 20-year-old named Marat Safin thumped then-greatest-of-all-time apparent Pete Sampras in straight sets for a stunning U.S. Open title. Many believe del Potro has the power and physique to derail the Federer Express at a tournament where he's undefeated since 2003 -- a span of 40 matches.
Yes, Federer is 6-0 against the young Argentine, including three straight-set victories on hard courts. But the fast-rising del Potro is 17-1 since Wimbledon, and he pushed Federer to the limit in June in a thrilling five-set French Open semifinal.