ATP says it can't reopen Agassi drug case LONDON (AP) -- The ATP Tour will not reopen a doping case against Andre Agassi even though he admitted to lying about using crystal meth in 1997....Del Potro to play at Queen's Club tournament LONDON (AP) -- U.S. Open champion Juan Martin Del Potro will play at next year's Queen's Club tournament in an effort to improve his grasscourt game ahead of Wimbledon....American Sam Querrey on mend from accident LOS ANGELES (AP) -- Sam Querrey narrowly avoided a potentially career-ending injury when he shattered a glass table after practicing for a tournament in Thailand....Belgian tennis players appeal doping bans LAUSANNE, Switzerland (AP) -- Belgian tennis players Yanina Wickmayer and Xavier Malisse have asked the Court of Arbitration for Sport to overturn their one-year bans for missing drug tests....Federer, Del Potro in same group for ATP Finals LONDON (AP) -- Top-ranked Roger Federer will play U.S. Open champion Juan Martin del Potro and Andy Murray in the round-robin phase of the ATP World Tour Finals....Injured Roddick pulls out of season-ending event LONDON (AP) -- Andy Roddick is withdrawing from the season-ending ATP World Tour Finals because of a left knee injury....Survey: More minorities in US playing tennis LOS ANGELES (AP) -- More Americans are playing tennis, with Hispanics and blacks showing a marked increase....Credit Suisse to sponsor Roger Federer thru 2019 ZURICH (AP) -- The Swiss bank Credit Suisse has signed a 10-year sponsorship with Roger Federer....
