Fritz has struggled on clay courts this year, but hoped to build on last year's runner-up finish at the U.S. Open.

Torrey Pines High School alum and U.S. Open runner-up Taylor Fritz lost in the first round of the French Open as the tournament's No. 4 seed on Monday, eliminated 7-5, 3-6, 6-3, 6-1 by 66th-ranked Daniel Altmaier of Germany.

American Taylor Fritz suffered a surprise first-round defeat against Germany’s Daniel Altmaier at the French Open on Monday.