Teen who wowed the world in 2009, when she beat Serena Williams 5-1.
She started competing at the Chris Evert Tennis Academy at age 9.
She reached the third round of both the Australian Open and Wimbledon in 2013.
She has three siblings named Sydney, Montana, and Hunter.
She defeated Serena Williams in a friendly match which was the first to 5 games, Serena didn't take the match extremely seriously but it was still a great with for Madison.