Eugene Koo, the critical right-hand man for Rockies' reliever Seugnwhan Oh

2017 Ace Wem April, PDF, Washington Metro

Colorado Rockies relief pitcher Seunghwan Oh (18) makes the sign of the letter O with translator Eugene Koo, right, as they take part in a fan photo promotion before a baseball game

Rockies Insider: Breaking down Colorado's ideal playoff lineup

2017 Ace Wem April, PDF, Washington Metro

Mapping, PDF

Rockies Insider: Breaking down Colorado's ideal playoff lineup

Colorado Rockies relief pitcher Seunghwan Oh (18) makes the sign of the letter O with translator Eugene Koo, right, as they take part in a fan photo promotion before a baseball game

A roundup of the Denver Broncos' preseason loss to the Chicago Bears

Colorado Rockies relief pitcher Seunghwan Oh (18) makes the sign of the letter O with translator Eugene Koo, right, as they take part in a fan photo promotion before a baseball game