Undoubtedly, Garbine Muguruza has one of the most powerful games in women's tennis, at least, among the up-and-coming women players. I was not altogether surprised that she has made it into the last four in Wimbledon 2015. What makes it scary is that she can not only play in clay (she reached the SF of Roland Garros last year), she can also play on grass!
We all await with bated breath how she does in the US Open later this year.
As for now, Garbine has a very good chance of reaching her very first grand slam semifinal, as she will meet Agnieszka Radwanska.