(Photo credit: Susan Mullane-Imagn Images)

Second-seeded Tallon Griekspoor fended off five match points and rallied to defeat Italian qualifier Andrea Pellegrino 4-6, 7-6 (6), 6-3 to advance to the quarterfinals of the Nordea Open on Wednesday in Bastad, Sweden.

Griekspoor, a three-time winner on the ATP Tour, trailed 6-3 in the second-set tiebreaker but won five consecutive points to overtake Pellegrino and extend the match. The Dutchman will now face countryman Jesper de Jong, who upset Czech eighth seed Vit Kopriva 7-6 (3), 7-5. de Jong defeated Griekspoor in their lone meeting in Montpellier in February.

In other second-round matches, fourth-seeded Sebastian Baez of Argentina edged Norwegian qualifier Nicolai Budkov Kjaer 3-6, 6-2, 7-5, while sixth-seeded Luciano Darderi of Italy breezed past Sweden's Elias Ymer 6-2, 6-2.

The first round also wrapped up Wednesday, with Austria's Filip Misolic, Botic van de Zandschulp of the Netherlands and Argentines Mariano Navone and Camilo Ugo Carabelli advancing.

EFG Swiss Open Gstaad

After a six-week layoff, top-seeded Casper Ruud encountered a tough return, but was able to knock off Swiss wild card Dominic Stricker 7-5, 7-6 (6) to reach the quarterfinals in Gstaad, Switzerland.

The former World No. 2 from Norway saved two set points in the second-set tiebreaker to prevail.

On Ruud's side of the draw, Ignacio Buse, a qualifier from Peru, rallied from a set down, then dominated the third set in a 1-6, 7-5, 6-1 victory over Poland's Kamil Majchrzak. Buse will take on Argentina's Roman Andres Burruchaga in the quarterfinals. Burruchaga also came from behind, eliminating Germany's Patrick Zahraj 4-6, 6-4, 6-1.

Mifel Tennis Open

In Tuesday's late-night action, a pair of Australians earned different results in first-round play in Los Cabos, Mexico.

Eighth-seeded Adam Walton shook off a break of serve in the first game of the match and eliminated Mexican qualifier Rodrigo Pacheco Mendez 7-6 (5), 6-2. Meanwhile, a Mexican wild-card entry, Luis Carlos Alvarez, ranked No. 784 in the world, cruised past James McCabe 6-1, 6-2. Alvarez converted 5 of 7 break chances, while McCabe went 0 for 6.

--Field Level Media