Complex sentence: She reached the final in Palermo, where she was defeated by Italian fellow and doubles partner Roberta Vinci; then she played in Rogers Cup as 5th seed and for the first time she reached the quarterfinals, where she was defeated by 3rd seed Agnieszka Radwanska.
Split into simpler sentences: She reached the final in Palermo, where she was defeated by Roberta Vinci. Then she played in Rogers Cup as fifth seed, and for the first time, she reached the quarterfinals, where she was defeated by third seed Agnieszka Radwanska.