The U.S. Open, wrapping up an unpredictable year of Grand Slam tennis, quickly produced a big upset Monday.
A British man not named Andy Murray -- 179th-ranked qualifier Daniel Evans -- stunned 11th-seeded Kei Nishikori in straight sets. Evans won 6-4, 6-4, 6-2 in his U.S. Open debut.
Both are 23, but Nishikori was playing in his 17th Grand Slam event, with a 25-16 record coming in. Evans was 0-2, both matches at Wimbledon.
Evans had to rally from a set down in his final match of qualifying to make the field.
Nishikori was a quarterfinalist at the 2012 Australian Open.
Both players faced nine break points Monday, but Evans converted six and to just two for Nishikori.