Johansson, from Sweden, needed three sets to
rally past Olivier Rochus of Belgium, 4-6, 6-3, 6-4, in this $400,000 hardcourt tournament.
He will play the winner of the second-round match between Thailand's Paradorn Srichaphan and Russian Andrei Stoliarov..
Pavel cruised to a 6-3, 6-3 victory over Italalian qualifier Stefano Galvani to reach the final eight.
The 27-year-old Romanian awaits the winner of the encounter between sixth-seeded Dominik Hrbaty of Slovakia and Spain's Alex