Congratulations to the member 'dinara :D' who was randomly selected and wins a signed autograph card.  

The correct answer is Serena Williams, Justine Henin, Ana Ivanovic and Sara Errani.

THE CONTEST IS NOW CLOSED

Want to win a signed autograph card from Maria?  Well, here is your chance, all you have to do is answer a trivia question correctly about Maria.

Here is the question:
Can you name the four players that Maria defeated in the final when she won her four Grand Slam titles?

The contest will close at 10.00 AM ET on November 2nd.  To enter you need to put your answer in the comment section below this post.  The winner will be selected randomly from all the correct entries.