‪39 year-old Tommy Haas proves age is just a number, defeating 19 year-old Opelka in Houston‬ ‪More on the match: http://tennischannel.com/news/top-stories/youth-got-served-haas-39-beats-opelka-19-in-houston‬

HOUSTON (AP) -- In a match representing one of the largest age gaps between players in recent decades on the men's tennis tour, 39-year-old Tommy Haas edged 19-year-old Reilly Opelka 7-6 (5), 4-6, 6-3 on Monday at the U.S. Men's Clay Court Championship.It