Elina Svitolina (Ukrainian: Еліна Світоліна; born September 12, 1994) is a junior Ukrainian tennis player. Her highest WTA singles ranking is 202, which she reached on January 2, 2012. Her career high in doubles is 378, achieved on November 28, 2011. She reached her first professional singles final at the ITF $25,000 tournament in Kharkiv in May 2010.

Svitolina best achievement so far is by winning the Roland Garros girls event in 2010, beating Tunisian Ons Jabeur in the final.

Elina Svitolina was born to Elena Svitolina and Mikhaylo Svitolin and has a brother named Julian. She resides at Kharkiv, Ukraine and is currently being coached by Andrey Lutsenko. Her favourite surfaces are grass and clay.

Serena Jameka Williams (born September 26, 1981) is an American professional tennis player and a former world no. 1. The Women's Tennis Association has ranked her world no. 1 in singles on five separate occasions. She became the world no. 1 for the first time on July 8, 2002 and regained this ranking for the fifth time on November 2, 2009. She is the only female player to have won over $35 million in prize money.

Her 27 Grand Slam titles places her ninth on the all-time list: 13 in singles, 12 in women's doubles, and 2 in mixed doubles. She is the most recent player, male or female, to have held all four Grand Slam singles titles simultaneously and only the fifth woman in history to do so. She was also the first woman, along with sister Venus Williams, to hold all four Grand Slam doubles titles simultaneously since Martina Hingis did so in 1998. Her 13 Grand Slam singles titles is sixth on the all-time list. Williams ranks fourth in Grand Slam women's singles titles won during the open era, behind Steffi Graf (22 titles) and Chris Evert and Martina Navratilova (18 titles each). She has won more Major titles in singles, doubles, and mixed doubles than any other active player, male or female.