Distracted by a time penalty and unable to counteract No. 97-ranked Laura Siegemund’s aggressive approach, Zheng Qinwen’s loss in the second round Wednesday fell a long way short of last year’s run to the Australian Open final. Zheng lost the 2024 decider at Melbourne Park to Aryna Sabalenka and went on to win the Olympic gold medal in Paris and finish runner-up at the WTA Finals in a breakout season.