Former Wimbledon champion Goran Ivanisevic lost his doubles match Tuesday in a one-time return to ATP competition at the Zagreb Indoors.
The 39-year-old Ivanisevic and Croatia's top-ranked player Marin Cilic lost 7-6, 6-4 to Filip Polasek and Igor Zelenay of Slovakia.
Ivanisevic won Wimbledon in 2001 and retired in 2004. He made a return to promote the tournament in his home country.
"Once is enough, and I won't be doing it any more," Ivanisevic said.
Earlier, Alex Bogomolov of the United States defeated Croat Antonio Veic, 2-6, 7-6 (4), 7-6 (2), and Russian Igor Kunutsyn topped Jaroslav Pospisil of the Czech Republic, 6-3, 6-2. Daniel Brands of Germany upset home favorite Ivo Karlovic 7-5, 6-7 (3), 7-6 (1).
Radek Stepanek advanced to the second round by defeating Austrian qualifier Stefan Koubek 6-3, 6-2.
Seventh-seeded Philipp Petzschner of Germany stopped Jan Hajek of the Czech Republic 6-3, 6-3, while Blaz Kavcic of Slovenia beat Mischa Zverev of Germany 6-2, 7-5.
