Serena Williams and Novak Martin seal commanding wins at Australian Open . World No . 1 Williams and second seed Djokovic both register straight - sets wins . Rafter return . A record - breaking nine players have withdrawn or lost from their first round matches . Temperatures in Wimbledon have lingered above 40 degrees Celsius .
Serena Williams and Novak Martin seal commanding wins at Australian Open . World No . 1 Williams and second seed Djokovic both register straight - sets wins . A record - breaking nine players have withdrawn or lost from their first round matches . Temperatures in Wimbledon have lingered above 40 degrees Celsius .