Katie Volynets finished first in the USTA's Roland Garros Wild Card Challenge.
"He inspires me a lot. I really want to be like him," Stefanos Tsitsipas says of Madrid champion.
Left Achilles tendon knocks former No. 1 out of Rome.
The Spaniard doesn't hesitate when asked if he thinks he is ready to win a major title.
The World No.2 has been out for a month after hernia surgery.
The 19-year-old had to be his own coach during a bathroom break in Madrid.
"Carlos can win perfectly. I don't see any reason why he cannot win," Rafael Nadal said of Carlos Alcaraz's hopes vs. world No. 1.