Kathryn Nesbitt, 2020 Assistant Referee of the Year, becomes the first woman to referee a championship match in professional men's sports in North America by officiating the 2020 MLS Cup Final.

Kathryn Nesbitt, 2020 Assistant Referee of the Year, becomes the first woman to referee a championship match in professional men's sports in North America by officiating the 2020 MLS Cup Final.