Lucky Tennis Shots?

Have you got a couple of minutes to see some of WTA's luckiest tennis shots?  If you play tennis and you practice - practice - practice - you may feel that the word luck just doesn't encompass all the hard work, passion and dedication that you put in to your tennis regimen year after year.  You have to see these shots for yourself and decide, if it is just luck, talent, sheer perseverance or a combination of all three and some.