q: How many Wimbledon crowns has Serena won? a: Four q: When did she win the last one? a: July q: Is she going to be in the Aussie's open in January? a: No q: Why not? a: To give herself more time to recover q: From what? a: From foot surgery q: How did she originally injure her foot? a: Standing on broken glass q: Where? a: Restaurant q: What had she just won? a: Grand slam of the year q: What win of her career was that? a: 13th q: What nationality is she? a: American q: What was she scheduled to compete in next month? a: Hopman Cup q: Did she have any choice but to pull out? a: No q: How much regret did she have about it? a: Utmost q: What did she recently learn? a: "Pushing myself back into my intense training too early only caused me further injury and damage." q: What source is this article from? a: In a statement released Thursday q: What year of Open Championships won't she be in now? a: 2011 q: Who is she working with to ensure her foot heals properly? a: Her doctors q: Who claimed the top spot when Williams was absent? a: Caroline Wozniacki q: Where's she from? a: Denmark q: Are the rankings for the whole world? a: Yes q: Is Williams going to intensely train earlier or later now? c: (CNN) -- Defending champion Serena Williams will miss the Australian Open in January to give herself more time to recover from foot surgery. 

The former world number one has not played competitively since winning her fourth Wimbledon crown in July. 

She sustained the original injury after standing on broken glass at a restaurant shortly after winning her second grand slam of the year and 13th of her glittering career. 

Williams attempted to come back ahead of the season-ending WTA Championships in Qatar, but had to abandon her attempts after aggravating the injury in training. 

The American was also due to compete in the Hopman Cup in Australia next month, but in a statement released Thursday said she had been left with no choice but to pull out. 

She said: "As I continue to rehabilitate my foot after the second surgery last month, it is with the utmost regret that I am withdrawing from the Hopman Cup and the 2011 Australian Open Championships. 

"As I recently learned, pushing myself back into my intense training too early only caused me further injury and damage. 

"While I desperately want to be back on the court and competing in the first grand slam tournament of the year, it is imperative for my health that I continue to work with my doctors to ensure my foot heals properly." 

Williams dominated the early part of the 2010 season, with victories at the Australian Open and the grass of Wimbledon, but in her absence Caroline Wozniacki of Denmark claimed top spot in the global rankings. 
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