The building of a tennis player’s calendar, which is usually made with his/her coach and, perhaps, his/her manager, may at times meet with complications, depending on the ranking of the player or on commitments that the top players have with the world organisations.
The latter was the case of Serena Williams, the WTA number one player, who went from being crowned champion of the Australian Open to, a few hours later, travelling to Argentina to play a World Group II Fed Cup tie. Why that commitment? Because had she not played that tie, she would not have been eligible to play the 2016 Rio Olympics.
The youngest of the Williams sisters was far from being at 100% as far as health (we could see her cough, and she ended up pulling out of the second day of competition) and tennis were concerned. There was scarcely enough time to practice on clay and on South American soil, definitely not enough for any player to get used once more to sliding and breaking at the right time.
A string of events have been developing throughout the years, in which neither the players nor the managers have been taking into consideration the necesary intervals between rest and training. This idea of thinking in the immediate doesn’t do tennis any good, in any way. Although maybe it has advantages from an economical point of view.