Barcelona:Andrei Pavel of Romania beat 10th-seeded Radek Stepanek 4-6, 6-3, 6-4 Monday on the opening day of the Open Seat Gordo tournament.
Pavel twice broke the Czech after losing the first set and saved three break points over the final two sets to advance to the second round.
Stepanek hasn't moved past the last 16 of any tournament this year after missing the second half of 2006 with a back injury.
Oscar Hernandez of Spain knocked out ninth-seeded Dmitry Tursunov of Russia with a 6-4, 6-4 win. Hernandez will next play Benjamin Becker of Germany, who beat Igor Kunitsyn of Russia 7-6 (2), 6-4.
Other first-round winners included American player Vincent Spadea who beat Teimuraz Gabashvili of Russia 6-3, 3-6, 6-1, while Andreas Seppi of Italy defeated Ivo Karlovic of Croatia 6-7 (2), 7-5, 6-4.
Also, Thomas Johansson of Sweden beat Lee Hyung-taik of South Korea 6-3, 6-3, and qualifier Pablo Andujar of Spain defeated Bartolome Salva-Vidal of Spain 6-4, 6-0. Andujar converted six of 20 break chances to set up a second round match with 2001 winner Juan Carlos Ferrero.
Paolo Lorenzi of Italy was taken to three sets and two tiebreakers by Stefano Galvani of Italy, before winning 6-7 (6), 6-2, 7-6 (1).
Feliciano Lopez beat Guillermo Garcia-Lopez of Spain 7-5, 6-3 and faces 2004 winner Tommy Robredo next. Qualifier Yuri Schukin of Russia beat Werner Eschauer of Austria 6-4, 6-4 and plays fifth-seeded Nikolay Davydenko in the second round.
Felix Mantilla of Spain advanced after a 6-4, 1-6, 6-0 win over Farrukh Dustov of Uzbekistan, and Alberto Martin will face fourth-seeded David Nalbandian next after his 6-1, 6-4 win over Colombian player Alejandro Falla.
Defending champion Rafael Nadal is looking to extend his unbeaten run on clay to 68 with a third straight championship in Barcelona, matching Swedish player Mats Wilander who won three straight from 1982-1984. The 20-year-old Spaniard has won 11 tournaments during the streak.
Nadal, who has a first-round bye, beat top-ranked Roger Federer for his third straight Monte Carlos Masters title on Sunday.
"Getting a win against the No. 1 always makes you feel confident," Nadal said. "(Winning) Indian Wells also gave me confidence. I feel good."