The Russian is flying high at Roland-Garros for the first time.
Twelve years after she reached the Roland Garros quarterfinals, Sorana Cirstea streaked into the fourth round.
The American hopes she is a stepping stone to glory for Williams.
Chasing history, Serena Williams sends a statement of identity reaching fourth round.
Did Yana Sizikova intentionally tank a service game at the 2020 Roland Garros?
"It's heartbreaking," world No. 1 said of left hip issue that knocked her out of Roland Garros.
The top seeds have run into some bad luck in Paris.