MELBOURNE: Top-ranked Carlos Alcaraz and Aryna Sabalenka resume their quest for more Grand Slam glory on Wednesday, headlining the day four action at the Australian Open.
Three-time finalist Daniil Medvedev is also on a mission to safely negotiate the second round at Melbourne Park, as are third seeds Coco Gauff and Alexander Zverev.
Alcaraz started his bid for a career Grand Slam with a three-set defeat of home hope Adam Walton on Sunday and faces German Yannick Hanfmann.
