Roger Federer rules out boycotts after winning again at ATP World Tour Finals . Swiss star says there is no reason to strike over tournament scheduling . Federer hands American Mardy Fish his third defeat of the week in London . TL;DR ( CNN ) -- Tennis stars and their fans are calling for a boycott of next week's U.S. Open because it will be held on Father's Day weekend.
Roger Federer rules out boycotts after winning again at ATP World Tour Finals . Swiss star says there is no reason to strike over tournament scheduling . Federer hands American Mardy Fish his third defeat of the week in London . TL;DR Tennis stars and their fans are calling for a boycott of next week's U.S. Open because it will be held on Father's Day weekend.