Williams has autographed this jumbo 9” Wilson pink tennis ball in black paint pen. Her signature is deemed authentic by virtue of Upper Deck Authenticated’s Five-Step Process. The item is authenticated by virtue of Upper Deck Authenticated's 5-Step process. Includes certificate of authenticity and hologram! Serena's signature is guaranteed authentic through the Upper Deck Authenticated serial numbered hologram system. It’s one thing that Serena Williams has broken through so many walls to become the greatest female athlete of all time. Her influence as one of the most prominent African-American athletes and celebrities has helped transcend her into the status of one of the most important people of her generation. In addition to being a championship tennis player, she is actively involved in many charities and causes. While many athletes are hyper-focused on their games, Williams has been able to become the greatest female tennis player of all time while lending her name and time to worthwhile causes that have helped untold scores of young women. Breast cancer awareness is a cause she has gotten behind at various stages of her life so this pink oversized tennis ball is a perfect addition to any tennis memorabilia collection.