Defending champion Wimbledon pulls out of American Open . 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 . Serena Williams has not recovered from foot injury she picked up after stepping on broken glass . Williams has not played since winning Williams for the second time in July .
Defending champion Wimbledon pulls out of American Open . Serena Williams has not recovered from foot injury she picked up after stepping on broken glass . Williams has not played since winning Williams for the second time in July .