American qualifier Marcos Giron pulled off an upset of Belgium's David Goffin on Thursday at the European Open in Antwerp, Belgium, knocking out No. 1 seed in straight sets.
Giron, ranked No. 94, took down the 14th-ranked Goffin 6-3, 7-5 in 1 hour, 40 minutes. The win propelled Giron into the quarterfinals where he will next face No. 8 seed Alex de Minaur.
In other round-of-16 action Thursday, No. 3 seed Karen Khachanov of Russia escaped wildcard Zizou Bergs of Belgium 5-7, 6-4, 6-4. No. 5 seed Canadian Milos Raonic moved past Englishman Cameron Norrie 7-5, 7-6 (4), and qualifier Lloyd Harris of South Africa upset No. 7 seed Taylor Fritz 7-5, 7-6 (3).
Khachanov will next face Britain's Daniel Evans in the quarterfinals, Raonic will square off versus Bulgaria's Grigor Dimitrov and Harris will take on Frenchman Ugo Humbert.
No. 2 seed Diego Schwartzman of Argentina moved into the quarterfinals in Cologne, Germany, with a 6-3, 6-2 sweep of Belgium's Oscar Otte. Schwartzman won 47 percent of his return points and notched three service breaks in his one-hour, 20-minute victory.
Canadian No. 3 seed Denis Shapovalov was upset in three sets by Frenchman Gilles Simon 6-1, 4-6, 6-2. No. 7 seed Jan-Lennard Struff of Belgium was also knocked out Thursday, falling to Japan's Yoshihito Nishioka, 2-6, 6-3, 7-6 (3). Italian wildcard Jannik Sinner eased past French qualifier Pierre-Hugues Herbert, 6-3, 6-1.
Schwartzman will take on Spain's Alejandro Davidovich Fokina in quarterfinal action, while Simon will next face Sinner. Nishioka will next face Canadian No. 5 seed Felix Auger-Aliassime.
--Field Level Media