Vienna - Carlos Berlocq of Argentina came back from a break down in the second set to defeat Gerald Melzer of Austria 6-3, 7-6 (2) on Monday at the Erste Bank Open.
The 153rd-ranked Melzer led 5-3 but failed to serve out the set in the only main-draw match of the day. The Austrian, who is the younger brother of two-time champion Jurgen Melzer, appeared on a wild card in his seventh ATP event but is yet to win a match.
Berlocq, who is ranked 64th, next plays fourth-seeded Philipp Kohlschreiber of Germany, who had a bye in the opening round.
The field in Vienna is led by David Ferrer and Andy Murray, who are both in the race to qualify for the ATP finals in London next month.