Tiburon Peninsula seniors take top prize in tennis doubles world championship

Tiburon Peninsula residents Dan Grossman and Polo Cowan captured the men’s 55 doubles world championship in Lisbon, Portugal, Aug. 10-17. Grossman is now ranked No. 4 in the world in his men's 65 age group for doubles tennis, while Cowan is ranked No. 1 in the world for the men's 65 age group. (Elliot Karlan photo / For The Ark)

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