Marcel Granollers will play Rafael Nadal in the second round of the Barcelona Open after defeating Daniel Munoz de la Nava 6-4 6-3.
World No.50 Granollers had 10 aces on his way to victory over his fellow Spaniard to set up the match against title favourite Nadal.
Second-seeded Kei Nishikori, the defending champion at the clay-court tournament, opens on Wednesday against Thiemo de Bakker of the Netherlands, who defeated Sweden's Elias Ymer 6-4 6-7 (3) 6-3.
Fifth-seeded Roberto Bautista Agut of Spain fell to Russian qualifier Karen Khachanov 6-2 6-7 (4) 6-3 in the second round.
Nadal, who won the Monte Carlo Masters last week, is trying to win the Barcelona Open for the ninth time.
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He has beaten Granollers in their three meetings.
Earlier on Tuesday, 11th-seeded Alexandr Dolgopolov of Ukraine saved a match point and rallied to defeat Evgeny Donskoy of Russia 4-6 7-6 (9) 6-4 in the second round, while fellow Russian Mikhail Youzhny beat American Rajeev Ram 6-2 6-2 in a first-round match.
