Yahoo Sports reports: Follow The Athletic’s French Open coverage Welcome to the French Open briefing, where The Athletic will explain the stories behind the stories on each day of the tournament. On Day 9, an unlikely quarterfinalist, the beauty of pressure in tennis and a long, slow comeback journey. How did a qualifier continue her dream run? If tennis fans are surprised to see 24-year-old Polish player Maja Chwalińska in the quarterfinals, after defeating the last French singles player standing at Roland Garros, t