Injuries will once again keep one of America’s brightest marathon stars from making it to the start line. Jordan Hasay announced on Monday that she has withdrawn from October’s Chicago Marathon citing a fracture in her heel. 

“After training well and pain free for several months, I am heartbroken to have to withdraw. I am completely determined to figure out the cause of this injury and let it rest completely,” Hasay said on her Instagram page. 

Hasay was a late scratch from April’s Boston Marathon due to a stress reaction in her heel. She was one of four American women thought to have a chance to win the race and end America’s 33-year drought at the end. 

Hasay’s injury troubles come after the best year of her career. She made her marathon debut at the 2017 Boston Marathon, running 2:23:00 for third place. 

In the fall, she placed third at the Chicago Marathon with a time of 2:20:57. The mark was the second fastest in American history and raised credible speculation about her ability to break Deena Kastor’s American record of 2:19:36.

With Hasay’s absence, American hopes will likely rest with Amy Cragg. The 2016 Olympian will be running her first race since her massive 2:21:42 personal best at January’s Tokyo Marathon.