The argument is being made that current tennis players, unlike those of the past, are doing a lot of weight training and use this to explain the sudden change in the physique of your average tennis player. (If anyone has access to a specific weight training workout of any "suspect" top player - please bring it on). Let's take a look at something. Below is a picture of Rachel McLish, the world champion female body builder from the early 1980's (she was in a very interesting documentary called Pumping Iron II: The Women).
Now, it is widely felt that Rachel McLish is the last woman bodybuilder who did not use steroids. In fact, as soon as the beefed up steroid users came on the scene, she retired, stating she could not compete with them. So we can see pretty much the maximum amount of muscle that a woman is going to be able to build by spending most of her waking hours in the gym pumping iron. She has some good muscle definition all around, but you might find it surprising that she was the world champion.
Somehow, we are expected to believe that a woman who does a little weight training to enhance her tennis power could look like this:
Serena would not only win the pose down, World Champion Rachel McLish would be laughed off the stage. This shows to what extent we have been bombarded by images of steroid enhanced female athletes. A body like this seems to raise no eyebrows. We have lost our sense of the natural body of a female athlete.