Kelsey Mitchell of Team Canada reacts to winning her heat during the track cycling women's sprint race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Team support staffs prepare for the track cycling men's keirin race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Yuta Wakimoto of Team Japan competes during the track cycling men's keirin race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Riders compete during the track cycling women's omnium elimination race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Thibault Camus)

Riders compete during the track cycling men's keirin race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Thibault Camus)

Olena Starikova of Team Ukraine reacts after winning her heat during the track cycling women's sprint race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

A spectator waves a Japanese flag as competes during the track cycling men's keirin race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Clara Copponi of Team France competes during the track cycling women's omnium elimination race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Kevin Santiago Quintero Chavarro of Team Colombia, left, and Jason Kenny of Team Britain compete during the track cycling men's keirin race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Team peronsell rush to assist riders, including a rider from Team Ireland, after a crash during the track cycling women's omnium race at the 2020 Summer Olympics, Sunday, Aug. 8, 2021, in Izu, Japan. (AP Photo/Thibault Camus)