Serena Williams won her second straight Australian Open championship , ending Justine Henin's hopes of a Grand Slam title in her return from retirement with a 6-4, 3-6, 6-2 victory Saturday. Williams withstood a determined challenge from Henin before securing her fifth Australian Open title overall and 12th Grand Slam singles championship overall, tying Billie Jean King. King was at the stadium on Saturday night to take part in a pre-match ceremony to honor the 40-year anniversary of Margaret Court's four Grand Slam tournament wins in 1970. "Billie, we are tied," Williams said. "So I've reached my goal." Williams' five Australian titles is the most by any woman in the Open Era, since 1968, surpassing the four held by Margaret Court, Evonne Goolagong Cawley, Steffi Graf and Monica Seles. Court holds 11 Australian Open titles overall, most ...