Marketa's service has on one side (often) a very good long-axis pronation as well as an excellent head stability and eye control of the impact zone, but on the other side, it suffers from a rather extremely high toss, which leads to a limited body energy dynamic of the stroke...
Petra's favorite strokes are the service and the backhand, which is a great combination for her as a left-handed player. Her forehand is a bit mistake prone, as I did write about it in one of the previous articles here. Below, I am showing some important details from Petra's dominant service through the years, from her so far the most successful 2011 season and then some rather recent ones. And there are some developments to be spotted...
Already in the late 90's, Mirjana belonged to the most dominant serving female players on the WTA Tour as she was one of the first of them who really understood the efficient use of the pronation. On the photos from 1998 shown below is well visible how fast she was able to pronate with the integration of the body energy already in the age of 16 years
