![picture of WNO: The Best of Kaynan Duarte, Rodolfo Vieira, Geo Martinez, Kennedy Maciel, and More](https://d2j8xu67u0urrf.cloudfront.net/5fc6895a5f69b.png)
A jiu-jitsu legend returns as Rodolfo Vieira takes on Kaynan Duarte at Who's Number One on December 11.
![The Return of Rodolfo Vieira](https://d2j8xu67u0urrf.cloudfront.net/5fce802717a87.png?width=400&quality=80)
Rodolfo Vieira Returns vs Kaynan Duarte at WNO on Dec 11!
Dec 4, 2020
One of the greatest grapplers of his generation, Rodolfo Vieira, takes a break from his MMA aspirations to take on the current #1 ranked grappler, Kaynan Duarte.
The biggest match of the year happens at Who's Number One on December 11th.