However, it turned out to be American archer, Brady Ellison, who looks very much like The Revenant star.
Social media lit up with commentary about how the two could be twins.
Brady Ellison needs to look at the camera and say "No more bath, Gilbert." just so we can determine he's really not Leonardo DiCaprio— David (@heffcomedy) August 7, 2016
Brady Ellison from USA's archery team is definitely Leo ??? pic.twitter.com/vZe5ZaR3Bm— Jake Wilson (@JakeWilsonn1) August 6, 2016
Ellison, 27, is an Arizona native and married to Slovenian archer Toja Cerne. The three-time archery World Cup champion is competing in his third Olympics.
Ellison has already taken home a silver medal in Rio for the team event and will be competing on his own on Tuesday in men’s individuals. He is nicknamed "The Prospector."