Complex sentence: Davenport announced her intention to play in the 2009 Australian Open in January, ending speculation that she would be retiring from the sport; however, she withdrew from the event when she learned that she was expecting her second child.
Split into simpler sentences: Davenport announced her intention to play in the 2009 Australian Open in January, ending speculation that she would be retiring from the sport. However, she withdrew from the event when she learned that she was expecting her second child.