Complex sentence: Davenport's success continued into 2005 when she reached her first Grand Slam final, at the Australian Open, since the 2000 US Open; she fell to Serena Williams in three sets.
Split into simpler sentences: Davenport's success continued into 2005 when she reached her first Grand Slam final, at the Australian Open, since the 2000 US Open. Unfortunately for Davenport, she fell to Serena Williams in three sets.