Pat Rafter has warned Alex de Minaur to batten down the hatches as he strives to enter uncharted waters at the Australian Open.

Alex de Minaur's Australian Open fourth-round opponent Alex Michelsen has a hip injury he received a medical timeout for in his previous match.

In a workmanlike display, Alex de Minaur calls upon his fighting spirit to defeat Francisco Cerúndolo in four sets and reach the fourth round at Melbourne Park.

Alex de Minaur overcame a one-set deficit and his own serving yips Saturday afternoon to defeat 31st-seed Francisco Cerundolo in a marathon third-round Australian Open match.

Alex de Minaur has never made it past the fourth round at the Australian Open, but he'll have the opportunity to change that on Monday. In his way, though, is rising star Alex Michelsen. The 20-year-old American upset Stefanos Tsitsipas in the opening round before defeating both James McCabe and Karen Khachanov in straight sets.

Watch the match highlights between Francisco Cerundolo & Alex de Minaur in Round 3 of the 2025 Australian Open.