From Ruiz Cotorro, Rafa's doctor:
"Rafa is not able to recover from the injury which he suffered in Wimbledon. Despite the great effort made by the player and after all of his treatments, he will not be able to participate in the Olympics. In agreement with the player and his team, from this moment on he will be have 15 days off and then we will set up a program of rehabilitation and muscle strengthening. "
So 15 days off from now would be beginning his rehab on August 4. Almost surely he won't play Toronto, Cincy looks in doubt as well.