Before facing Sharapova in her Stuttgart comeback, Vinci makes views clear.
Serena celebrates return to No. 1 as a true family affair.
Dominika Cibulkova pulled out of this week's Porsche Tennis Grand Prix in Stuttgart due to a wrist issue.
Last year's Wimbledon Girls' singles runner-up cracks a mileston.
The Indian-Uruguayan pairing won their first Masters 1000 title.
Sharapova opens with Vinci, could face Radwanska in round two grudge match.
World No. 1 puts Serena at top.