The No. 1 ranked woman over 800m during 2014 will not toe the starting line in Beijing at the world championships.

Ajee Wilson, who finished second at the U.S. Championships in June, has withdrawn from the event citing injury.

Unfortunately had to notify @usatf that @AjeeW will not be able to represent Team USA at @iaaf Beijing #injury she even had during US Champs

— RayPFlynn (@RayPFlynn) August 10, 2015

Wilson has the third-fastest time in the world in 2015 from her 1:57.87 at May’s Prefontaine Classic.

Molly Ludlow, who finished fourth at the U.S. trials, would be next in line. Ludlow’s season best of 1:58.68 ranks her sixth in the world.