How SI Chose 2020's Fittest Athletes, Simone Biles and Giannis Antetokounmpo

Video Rating:
TV-G
Video Duration:
3:09

What measures and benchmarks should we use when comparing athletes of all shapes and sizes, from disparate sports? Here's an inside look at how SI choose its 2020 Fittest 50 and why Simone Biles and Giannis Antetokounmpo are this year's top athletes.