Johannesburg - South African No 1 Kevin Anderson will face Spanish world No 20 Fernando Verdasco in the third round of the Barcelona Open after edging past a qualifier on Wednesday.
Anderson, ranked 32nd in the world, beat Argentine Federico Delbonis but was made to work hard for a 7-6 (7/5), 7-6 (7/5) second-round victory.
He is expected to be tested even further by Verdasco, the former world No 7, who won in Barcelona two years ago.
They square up on Thursday for a place in the quarter-finals.Results from the third day of the Barcelona Open on Wednesday (x denotes seeding):
Jarkko Nieminen (FIN) bt Eduardo Schwank (ARG) 6-3, 6-7 (4/7), 6-4
Feliciano Lopez (ESP x7) bt Flavio Cipolla (ITA) 6-4, 6-3
Albert Ramos (ESP x17) bt Benot Paire (FRA) 6-3, 7-5
Janko Tipsarevic (SRB x5) bt Victor Hanescu (ROM) 7-5, 6-4
Rafael Nadal (ESP x1) bt Guillermo Garcia-Lopez (ESP) 6-1, 6-2
Kei Nishikori (JPN x8) bt Mikhail Kukushkin (KAZ) 6-3, 4-6, 6-0
Kevin Anderson (RSA x13) bt Federico Delbonis (ARG) 7-6 (7/5), 7-6 (7/5)
Albert Montanes (ESP) bt Bernard Tomic (ARG x15) 6-0, 5-7, 7-5
David Ferrer (ESP x3) bt Filip Krajinovic (SRB) 6-0, 6-3
Milos Raonic (CAN x11) bt Igor Andreev (RUS) 6-4, 6-1
Santiago Giraldo (COL) bt Robin Haase (NED) 6-4, 6-3