Home Soil Proves Advantageous for Americans at Clay Court Championship in Houston
Action began Monday at the Fayez Sarofim & Company U.S. Men's Clay Court Championship in Houston, as 20-year-old American Jack Sock recorded the biggest upset of the day, defeating 2007 Houston champion and number eight seed, Ivo Karlovic, 6-1 6-4. Karlovic was broken four times in the 55-minute match. Sock awaits the winner of the…

