Serena Williams rewrote history on 28 January to surpass Steffi Graf and capture a record 23rd grand slam title as well as the World No-1 rankings by beating her sister Venus Williams in the Australian Open final. Serena, 35, who equalled Graf’s mark of 22 at Wimbledon last year, now stands just one behind the all time 24 won by Margaret, who was in the president’s box to witness her feat.