Two-time French Open runner-up Dominic Thiem, whose ranking has slipped to 194 after a lengthy battle with a wrist injury, crashed out in the first round Sunday, losing 6-3, 6-2, 6-4 to Hugo Dellien of Bolivia. Thiem, the 2020 US Open champion, has yet to win a match in five attempts since his return in March. He has now lost 10 tour-level matches in a row. His last victory came in Rome just over a year ago. The 28-year-old Austrian, a former world number three, reached at least the quarter-finals at Roland Garros five years running from 2016 to 2020.