 The third Grand Slam tennis tournament of the year gets underway tomorrow in England as defending Wimbledon champions Marketa Vondrusova and Carlos Alcaraz return to the grass court. Past champion Novak Djokovic says he's ready to compete after knee surgery less than a month ago. Organizers are hoping that Princess of Wales Kate Middleton will attend the event as she continues her cancer treatment. As patron of the event, she's traditionally presented the winner's trophies.