Mackenzie McDonald is slated to face Rafael Nadal in the second round.

McDonald in action during Monday's four-hour battle against countryman Nakashima.

Three years ago Mackenzie McDonald played Rafael Nadal for the first time.

Mackenzie McDonald won the 2016 NCAA Division Tennis Championships in singles and doubles.

Hobbled Rafael Nadal ‘mentally destroyed’ after Australian Open defeat

McDonald He reached a career-high singles ranking of world No. 48 and No. 90 in doubles.

“I was just swinging the racquet and she was sitting there dropping balls.”

McDonald said. “I’ve had my ins and outs with tennis for sure like every other player.

Michael Mackenzie Lowe "Mackie" McDonald is an American professional tennis player.

McDonald said. “This is something I’ll remember. I’m going to make it memorable.”