PARIS: Teenage star Coco Gauff and Martina Trevisan, a seasoned Italian professional who rebuilt her career after conquering anorexia, reached their maiden Grand Slam semi-finals at the French Open on Tuesday. Gauff, who burst onto the scene as a 15-year-old history-maker at Wimbledon three years ago, defeated fellow American Sloane Stephens 7-5, 6-2. Trevisan needed three sets to see off 19-year-old Leylah Fernandez of Canada 6-2, 6-7 (3/7), 6-3. Victory for Gauff, 18 years old and ranked 23 in the world, avenged her defeat to Stephens at the 2021 US Open and helped erase the memory of her quarter-final defeat last year to eventual champion Barbora Krejcikova in Paris. On Tuesday, Gauff broke in the second game of the match to lead 3-0 before 2018 runner-up Stephens levelled with a break and hold for 5-5. However, clean, precise hitting allowed Gauff to dominate the 12th game to clinch the opener. Stephens, playing in her first Slam quarter-final in three years, and Gauff traded breaks at the start of the second set before the teenager again pounced for 3-1. Gauff held for 5-1, was broken for 5-2 before Stephens dropped serve for the fourth time in the set to hand her compatriot victory. Gauff was junior champion at Roland Garros in 2018 and then rocketed into the public consciousness when she became the youngest woman to qualify for Wimbledon. Her profile rocketed when she went all the way to the fourth round at the All England Club, knocking out Venus Williams on the way. While in the French capital, Gauff has graduated high school, marking the occasion on Instagram with a family photo in front of the Eiffel Tower. World number 59 Trevisan, 10 years older than Gauff, was a shock quarter-finalist in 2020. She arrived at the French Open with a maiden WTA title in Rabat and went into Tuesday’s tie on a nine-match winning streak. She made that 10 when she claimed victory on a second match point having wasted one in the second set with Fernandez left to rue her 44 unforced errors. Trevisan, now guaranteed a place in the top 30 at least, said Grand Slam titles by fellow Italians Francesca Schiavone in Paris in 2010 and Flavia Pennetta at the 2015 US Open were her influences. Two years ago, Trevisan, then ranked 159, knocked Gauff out in three sets in the second round in Paris. She then revealed how she struggled as a teenager with an eating disorder after her father was diagnosed with a degenerative disease. The remaining French Open quarter-finals take place on Wednesday when world number one Iga Swiatek looks for a 33rd successive win when she faces Jessica Pegula of the United States. Swiatek, who was celebrating her 21st birthday on Tuesday, was champion in Paris in 2020. Daria Kasatkina and Veronika Kudermetova meet in the other, all-Russian quarter-final.