(Note: I posted this yesterday on the 'General Pro Player Discussion' but I felt like it was applicable this forum too.) Before anyone states that the two haven't "copied" Sampras, please let me explain... Sampras was an idol to both Federer and Djokovic. If you take a look at young Fed and pre-2018 Djokovic, their serve had a massive resemblance to that of Pete's (i.e. Moderately staggering back swing, iconic front foot up starting position, and for Djoker, the tomahawk finish). If you want proof for my claims, please let me know - I have some videos cued up. Neither Fed nor Djoker has been able to recreate the power and topspin of Sampras's serve - and according to my research on tennisplayer, this is due to their less extreme stance and body rotation away from the net. So I would assume that the simple solution is to adopt Sampras's stance with the back foot pointing further back and turn the body away more. But this obviously hasn't happened. Is there a reason to this? Is there a drawback to having more rotation that I'm missing? Are Djoker and Fed simply incapable of contorting their body as Sampras has? If so, what is the cause?