One of the champions is unlikely to lap up adoration or show an overwhelming emotion in the pool. The other is all strut. Both styles were on display Wednesday night at La Defense Arena in Nanterre, France, where Frenchman Leon Marchand and American Katie Ledecky added to their growing medal collections. [time-brightcove not-tgx=”true”] Marchand, 22, became the first swimmer in 48 years to win two individual gold medals on the same day.