Storylines and matches to watch on Day 5 of the Australian Open (click here for the order of play):
• Rivalries revisited: In intriguing third-round matches, Maria Sharapova and Venus Williams headline the night session on Rod Laver Arena, while Ana Ivanovic and Jelena Jankovic turn back the clock (hopefully) to resurrect the rivalry that once determined the No. 1 ranking. “You certainly know what she’s capable of,” Sharapova said of Williams. “But when you’re out on the court, you’re not thinking how many titles she’s won or how experienced she is. You’re thinking about what you need to do to step it up in a certain situation and win as many points as you can.”
• The Steps and Djoker Show: Novak Djokovic is in such prime form that he’s an overwhelming favorite to continue his roll against the 34-year-old Czech Davis Cup hero, Radek Stepanek. But Stepanek loves to entertain the crowd, and if he gets down in this match, you can fully expect these two to drop into exhibition mode. Could be fun.