Serena Williams serious about becoming oldest No 1 Williams, who recorded a serve of 200kph (124mph) during a second-round 6-2, 6-2 win over France's Alize Cornet at the Brisbane International, is currently ranked third in the world. However, the 31 year-old is regarded as the pre-eminent woman player at the moment after winning the Wimbledon, US and Olympic titles last year. Evert was 30 years 11 months when she was No 1 in 1985. "I'm really boring now," Williams said. I used to be fun - for a fun time, call Serena. Now for a fun time do not call me. I think I just got older and I realised I can't be that fun girl for the rest of my life. I could be the oldest number one. I don't know how that goes with the funnest. Williams said she had not celebrated New Year's Eve. "I've been having insomnia," she continued. I don't know what time zone I'm in. I'm nocturnal right now. I was awake for New Year's Eve. I heard the fire crackers and I would have loved to have seen it but I had a match today so I didn't do anything fun. French Open champion Maria Sharapova withdrew from the season-opening Brisbane International with a right collarbone injury. Her practice time had been limited by the injury and the 25 year-old said she was told by her doctor to not do any overhead training for a week. OBE Andy Murray, who is also in Brisbane this week, said he understood why he had not been awarded a knighthood in the New Year's Honours, despite his extraordinary 2012. He said: "You need to do a lot, for a long time, to deserve an honour like that. A lot of the sportsmen and women have been given that just because their sport isn't necessarily in the spotlight all the time, it's easy to forget what they've done for 10, 15 years. Some of them have won 10 gold medals in world championships, four or five Olympic medals, and have been doing it for years. I've only been doing it for a couple years, so I think I'll definitely need to win a few more matches and have more tournaments to have a chance of getting that. Laura Robson's run in the Shenzhen Open ended at the second-round stage on Tuesday, with the Briton losing in straight sets to Monica Niculescu, but Heather Watson advanced to the second round of the ASB Classic in Auckland at the expense of fifth seed Sorana Cirstea, who retired hurt after losing the first set 6-3.