Osterman pitches US softball over Mexico 2-0 for 3-0 start

United States' Monica Abbott, center right, and Cat Osterman, center left, embrace defeating Mexico during a softball game at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Cat Osterman pitches during a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Ali Aguilar reacts after hitting a two run single off of Mexico's Danielle O'Toole in the third inning of a softball game at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States pitcher Cat Osterman reacts after a strikeout during a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Cat Osterman reacts after the sixth inning of a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Cat Osterman reacts after the sixth inning of a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Monica Abbott reacts after a strike out during a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Japan's Yu Yamamoto reacts after hitting a two-run home run during a softball game against Italy at Yokohama Baseball Stadium during the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Cat Osterman, center, reacts with teammates after the sixth inning of a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Cat Osterman pitches during a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Cat Osterman pitches during a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Japan's Yu Yamamoto, center and Yuka Ichiguchi celebrate after Yamamoto's two-run home run during a softball game against Italy at Yokohama Baseball Stadium during the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Italy's Laura Vigna catches a single by Japan's Yu Yamamoto during a softball game at Yokohama Baseball Stadium during the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Haylie McCleney steals second base under Mexico's Anissa Urtez during a softball game at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Japan's Yamato Fujita reacts after hitting a three-run home run during a softball game against Italy at Yokohama Baseball Stadium during the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Ali Aguilar reacts after hitting a two run single off of Mexico's Danielle O'Toole in the third inning of a softball game at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Italy's Laura Vigna catches a fly out during a softball game against Japan at Yokohama Baseball Stadium during the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Monica Abbott reacts after getting the win over Mexico during a softball game at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Mexico's Dallas Escobedo pitches during the second inning during a softball game the United States at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Japan's Yamato Fujita hits a three-run home run during a softball game against Italy at Yokohama Baseball Stadium during the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Mexico's Dallas Escobedo pitches during a softball game against the United States at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

United States' Cat Osterman pitches during a softball game against Mexico at the 2020 Summer Olympics, Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)