Haas reaches Zagreb QFs

Zagreb, Croatia ( - Top seed Tommy Haas was among Thursday's second-round winners at the Zagreb Indoors tennis tournament.

The former world No. 2 came from behind to beat fellow German Benjamin Becker 4-6, 6-3, 6-3 at Dom Sportova.

Up next for Haas will be Russian qualifier Andrey Kuznetsov.

In other action involving top-four seeds, German qualifier Bjorn Phau upended second-seeded 2012 Zagreb champion Mikhail Youzhny of Russia 4-6, 7-5, 6-1, No. 3 German Philipp Kohlschreiber lost just six points on serve in dousing Kazakhstan's Andrey Golubev 6-4, 6-2, and No. 4 Croatian favorite Ivan Dodig took out 6-foot-10 compatriot Ivo Karlovic 7-6 (7-5), 6-3.

Another Day 4 upset came when Kuznetsov topped eighth-seeded Dutchman Igor Sijsling 1-6, 6-3, 7-6 (7-5).

Also in the round of 16, British lucky loser Daniel Evans bested German qualifier Michael Berrer 1-6, 6-1, 7-6 (7-4) and Israeli veteran Dudi Sela dropped Slovak Lukas Lacko 6-3, 6-2.

Friday's other quarterfinals will pit Kohlschreiber against Evans, the 2011 Zagreb champion Dodig versus fifth-seeded fellow Croat and reigning champ Marin Cilic, and Sela against Phau.

The three-time Zagreb titlist Cilic beat Austrian Jurgen Melzer in last year's final and also captured this event back-to-back in 2009 and 2010.