Nadal, competing for the first time since falling to Novak Djokovic in the Australian Open final, has reached the final in all three previous appearances in Acapulco and now has a record of 15-1 in the event.
The world No. 2 faces Nick Kyrgios in the round of 16 after the Australian defeated Andreas Seppi of Italy 6-3 7-5.

Rafael Nadal of Spain celebrates during the match between Rafael Nadal of Spain and Mischa Zverev of Germany as part of the day 2 of the Telcel Mexican Open 2019 at Mextenis Stadium on February 26, 2019 in Acapulco, Mexico

Image credit: Getty Images

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Second seed Alexander Zverev lost just one point on serve in a dominant 6-3 6-3 win over Alexei Popyrin while John Isner, seeded third, recorded 18 aces in a 6-3 4-6 6-3 win over France’s Adrian Mannarino.
Isner next faces fellow American Sam Querrey, who beat Guillermo Garcia-Lopez 6-3 6-2.
Fourth seed Diego Schwartzman needed more than two hours to advance past Marius Copil 6-3 4-6 6-1. Schwartzman has returned to action after a right leg injury forced him to retire at the Rio Open last week, preventing him from defending his title.
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