Tennis, or for that matter any sport in mordern days are just POWER GAMES, no more skills oriented. The fact that Sports all over the globe is so much commercialised means, there will be too much of matches in all forms and too little for injured to recover. But then there are more and more players, which means you have to play as much as you can to earn in a short while and evade competition. We will hardly witness longevity of players in the comming generation, not because they are not talented, but because of the demands and nature of the beast called Commercialization.