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Denis Istomin

Wimbledon Lookahead: Smallest group of US men since 1947

The seven U.S. men in the Wimbledon main draw represent the country's smallest contingent since 1947, when only five played at the grass-court Grand Slam tournament. Three are scheduled to be in first-round action Tuesday: 31st-seeded Jack Sock, 37th-ranked Sam Querrey, and 77th-ranked Tim Smyczek. The 22-year-old Sock — who was born in Nebraska, later lived in Kansas City, and now is based in Florida — is seeded at a Grand Slam tournament for the first time in singles. A year ago at the All England Club, he lost in the second round of singles, but he won the men's doubles championship with Vasek Pospisil of Canada. On Tuesday, Sock will face Sam Groth of...