Having acclimated to the Florida humidity, top seed John Isner captured a 6-3, 6-4 win over fellow American Ryan Sweeting Wednesday to move into the quarterfinals of the Delray Beach International Tennis Championships. Isner's quarterfinal opponent will be Australian Bernard Tomic, who had a 6-1, 7-5 win over American qualifier Tim Smyczek. Qualifier Marinko Matosevic made it two Australians in the last eight by upsetting sixth-seeded Alex Bogomolov Jr. of Russia 4-6, 6-1, 6-3. It is the first time Matosevic has made an ATP quarterfinal, and he will take on 2010 tournament champion Ernests Gulbis of Latvia, who defeated Belgium's Steve Darcis 6-7 (6), 6-1, 6-3. Radwanska sweats In Kuala Lumpur, Malaysia, top-seeded Agnieszka Radwanska completed two wins Thursday to reach the quarterfinals of the rain-affected Malaysian Open. Radwanska returned to finish off a 6-2, 6-4 win over Akgul Amanmuradova of Uzbekistan. She then beat Karolina Pliskova of the Czech Republic 6-4, 6-4. Pliskova's twin sister Kristyna also lost Thursday, going down 2-6, 6-1, 6-4 to Peng Shuai of China. Jelena Jankovic beat Jill Craybas of the US 6-2, 6-0 to set up a quarterfinal against Ayumi Morita, who defeated fellow Japanese Misaki Doi 7-6 (6), 6-2. In a match between two Australians, Olivia Rogowska knocked out defending champion Jelena Dokic 3-6, 6-4, 7-6 (2).
