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Serena Williams of the U.S. serve speed of 207 km per hour (129 mph) is seen behind Ayumi Morita of Japan during their women's singles match at the Australian Open tennis tournament
Fastest Serves in Tennis - Sports Illustrated
Tennis: Serve Harder Training Program Manual by Joseph Correa: Serve 10 to 20 mph faster!: Correa, Joseph: 9781482039320: Amazon.com: Books
What It's Like to Face a 150 M.P.H. Tennis Serve | What's it like to stare down some of the fastest professional serves in tennis? See for yourself: http://nyti.ms/1KY2Ajm | By The