Former doubles world No. 1 Chanda Rubin is thrilled to see Rafael Nadal returning to the practice court as she is hoping to see the Spaniard fully ready at the French Open. Nadal, 35, last played at the Indian Wells Masters, where he suffered a stress fracture in one of his ribs. Nadal was having difficulties breathing during the Indian Wells final loss to Taylor Fritz and after the match underwent testing to determine the reason for why he wasn’t at his best. The day after the final, Nada …