America’s top men’s marathoner will miss the spring marathon season. 

Galen Rupp is recovering from surgery to repair two partial tears to his Achilles tendon, according to Ken Goe of The Oregonian.  

The tears are a result of Haglund’s Deformity—a bony enlargement at the back of the heel bone that rubbed against his Achilles tendon. During the surgery, Rupp's Achilles was detached in order for the surgeon to reshape Rupp's heel.  

Rupp underwent the procedure on October 19th, 12 days after he finished fifth at the Chicago Marathon in 2:06:21. 

"We thought we had a good plan, but the marathon itself is a different test than anything you'll do in a workout," Rupp told The Oregonian. "I was hoping and praying it would hold up. And, really, it did. Those other guys were better than me that day."

Rupp is currently in a cast and won’t be able to run for three months—eliminating any chance that he will race a spring marathon. 

This marks the first major injury of Rupp’s career. The 32-year-old completed two marathons a year since he debuted at the distance in 2016 and never missed a World Championships or Olympics on the track from 2007 to 2016.