After losing the first set to Agnieszka Radwanska in Toronto, Andrea Petkovic runs up and bites the net and then attacks her racket bag. "That was a help,” Petkovic told reporters. "I felt a big stone—a mental stone—in my stomach that I was eager to get out. Afterwards, I felt much better....You cannot allow yourself to lose points because of this….Sometimes the junior in me still comes out."