 This is Rich Cantu. The quest for 25 continues. 24-time Grand Slam champion Novak Djokovic cruised to a straight-sets victory over world number 15 Holger Ruhn to advance to the quarterfinals at Wimbledon Monday night. Ruhn's supporters stretched out his name, which sounds similar to Boo. And Djokovic, during the on-court post-victory interview, let the crowd know he wasn't about to tolerate any disrespect. To all those people that have chosen to disrespect...