Best of Rio 2016 Summer Olympics: That competitive look (60 images)

American Kendrick James Farris is successful in his first lift at 160-kg Snatch during the Weightlifting Group B 94-kg class competition at the 2016 Rio Summer Olympics in Rio de Janeiro, Brazil, August 13, 2016. Farris failed in his next two lifts at 160-kg. Photo by Mike Theiler/UPI

Kristiina Makela of Finland competes in the Women's Triple Jump at the 2016 Rio Summer Olympics in Rio de Janeiro, Brazil, August 13, 2016. Photo by Kevin Dietsch/UPI

USA's Michael Phelps adjusts his goggles before a Men's 200M Individual Medley semifinal at the Olympic Aquatics Stadium at the 2016 Rio Summer Olympics in Rio de Janeiro, Brazil, on August 10, 2016. Photo by Richard Ellis/UPI.

Pernille Blume of Denmark reacts after winning the gold medal in the women's 50m freestyle at the Olympic Aquatics Stadium at the 2016 Rio Summer Olympics in Rio de Janeiro, Brazil, on August 13, 2016. Photo by Matthew Healey/UPI