The American women’s 4x400 relay team was disqualified from the preliminary round at world championships after their third and fourth runners in the four-lap race bungled the baton exchange.

It’s one thing to be a new mom: Unpredictable, frazzled, busy; you’re trying to get to know your baby, heal your body and maybe even breastfeed, which can be unfamiliar and challenging, especially at first.

Athletes spend months, sometimes years, obeying strict diets that are geared toward the goal of making the Olympics.

Allyson Felix made her fifth Olympic team when she finished second in the 400 meters at U.S. track trials.