Originally Posted by Protoss
It's not like Caro's hits as big the aggressive big hitting types though.
Yes but she still hits stronger than those two and she often puts a lot of weight on her backhand shot which helps Kerber. Also Caro hits her serve with more power, I remember watching Angie against Errani at the US and she was netting the easiest returns ever, not once but a lot of times.
The good news from today, is that despite that first set, once Caro stepped up her serve, she was back in it with ease. She just needs to go for it on 2nd serve returns more often and not step back when she's leading the rally.