Celebrating Serena Williams' record 23rd Grand Slam title at the Australian Open and return to No.1 ranking, Wilson Sporting Goods Co. has launched an extremely limited-edition commemorative racquet, personally signed by the champion herself right after her Melbourne triumph and strung to the exact specifications she uses on tour. Wilson is selling only 23 of its 2017 Serena Williams Grand Slam Commemorative Edition Racquets and 100 percent of the proceeds from the sale are going to The Serena Williams Fund, which focuses on creating equal access to education and assists victims of senseless community violence.