Heptathlon Showdown Reignites Olympic Fears Kate O'Connor holds a commanding lead in the heptathlon heading into the final event, but her British counterpart Katarina Johnson Thompson's struggles have raised questions about the physical and mental demands placed on athletes.
Johnson Thompson, one of Britain's most successful track and field competitors, entered Saturday morning in 16th place, 780 points behind O'Connor.
Johnson Thompson's decline from favorite to medal contender is a stark reminder of the grueling schedule and pressure faced by athletes at this level.