In 2007 he became the first man since Bill Tilden to win the U.S. Open 4 years in a row
... Harrison, who became the first qualifier to ever take out a top-5 seed at the 
Open, ..... Djokovic now has 10 career Grand Slam crowns, tying him with Bill 
Tilden for... [DOC] [TLE] 2008 US Open (tennis) - Wikipedia [PAR] The 2008 US Open was a tennis tournament played on outdoor hard courts.