TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea celebrates hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Toru Hanai/Getty Images)

TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea celebrates with teammates after hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Toru Hanai/Getty Images)

TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea high fives with Manager Ji-Hyun Ryu #6 after hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Toru Hanai/Getty Images)

TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea celebrates with teammates after hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Toru Hanai/Getty Images)

TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea celebrates with teammates after hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Toru Hanai/Getty Images)

TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea celebrates with teammates after hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Chung Sung-Jun/Getty Images)

TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea celebrates hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Chung Sung-Jun/Getty Images)

TOKYO, JAPAN - MARCH 05: Bo Gyeong Moon #2 of Team Republic of Korea rounds bases after hitting a grand slam in the first inning during the 2026 World Baseball Classic Pool C game between Czechia and South Korea at Tokyo Dome on March 5, 2026 in Tokyo, Japan. (Photo by Toru Hanai/Getty Images)