Sharapova doesn't have that thug (Andy) of a bodyguard for protection, it is soley for attention. Have you seen the size of Sharapova she isn't exactly small.
In 2004 before she first won at the DFS she was walking around as normal. 2 weeks later she won wimbledon and ever since then she has this bodyguard at the DFS.
Now she has two guards Andy the thug and this other woman. It is pathetic. Fans spend a lot of money to see her, and go to a lot of trouble to travel to the tournament. It wouldn't kill her to spend a few seconds to take pics with fans.
She craves attention. Whenever she is in the final in her speech she mentions that she cares about the fans. She cares so much that she allows her bodyguard to assault the fans every chance he gets.