Coco Gauff has lost in the Australian Open quarterfinals to Paula Badosa 7-5, 6-4. Tuesday’s result ended a 13-match unbeaten run that dated to last season for Gauff, the 2023 U.S. Open champion.

Novak Djokovic today faces Alexander Zverev in the semi-finals of the Australian Open, with the Serb’s bid for a record 25th Grand Slam title picking up steam at just the right time.

Ahead of Friday’s men’s semi-finals, there are concerns over Novak Djokovic’s fitness, after the 10-time champion missed ...