Kuznetsova out with leg injury in Morocco
Former French and U.S. Open champion Kuznetsova breezed through the first set 6-1, lost the second, 7-6 (4), and trailed 3-2 in the third when she pulled out.
Sixth-seeded Chanelle Scheepers of South Africa lost 7-5, 1-6, 6-3 to Dutchwoman Kiki Bertens.
Third-seeded Petra Cetkovska defeated Timea Bacsinszky 6-3, 6-2, and fifth-seeded Simona Halep stopped Alexandra Cadantu 6-2, 7-5. Qualifier Garbine Muguruza Blanco advanced when Patricia Mayr-Achleitner retired after losing the first set 6-4.