From WTAtennis site: http://www.wtatennis.com/news/201207...256076_2851324
Radwanska, who made her Top 50 debut just this week and will also be playing at the Olympics, under the Polish flag, scored the first upset of the week in Carlsbad, winning a tight two-setter against the No.6 seed, Daniela Hantuchova, coming from a break down in the second set to finish it, 64 75.
Radwanska had lost to Hantuchova routinely in their two previous encounters.
"I knew what to expect from her. I know her game. So I was prepared for this match," Radwanska said afterwards. "I just believed in myself. In February when I played her I wasn't that well prepared, maybe a little bit scared, but this time I believed I could do it and played pretty well, in every area of my game.
"The last couple of weeks I've been playing very well. After every match I've been getting more experience and more confidence. Now I believe I can beat even players from the Top 20, and that was one of the keys for me today."
The younger Radwanska has been keeping in touch a lot with big sister, World No.2 Agnieszka Radwanska. "We talk to each other every day actually - even twice a day sometimes! We're Skyping all the time. I'm asking her how things are going at home in Poland, she's asking me how things are going here. We're in touch all the time. She's at home, resting after Wimbledon, but she's also practicing very hard for the Olympics. We usually only talk one sentence about tennis or matches though - most of the time we talk about other things."