The St. Louis Cardinals rookie made history in his debut on Sunday, going four innings without allowing a single base runner.

The St. Louis Cardinals' lety made his big league debut on Sunday and was amazing.

After years of rehab and two elbow surgeries, lefty rookie retires the first 12 batters he faces in the majors and joins ...

The Cardinals wrap a three-game series with the rubber game in Colorado at 2:10 p.m. (St. Louis time) on Sunday.

DENVER – El vuelo de Cooper Hjerpe a Denver la tarde del sábado para su posible debut en las Grandes Ligas transcurrió sin ...

DENVER – Cooper Hjerpe’s flight to Denver on Saturday evening for his potential big league debut was fairly smooth – a ...

Could a promotion be on the way for the St. Louis Cardinals?

If Cooper Hjerpe was feeling the nerves during his MLB debut on Sunday, he didn’t show it.The left-handed pitcher was on the mound for the St. Louis Cardinals against the Colorado Rockies, and it ...

The Cardinals are bringing up left-handed prospect Cooper Hjerpe for his major league debut. Read more at MLBTR.

Hjerpe (1-0) struck out six over four perfect innings of relief to earn the win over the Rockies on Sunday.

Woodland High School alumnus and St. Louis Cardinals pitcher Cooper Hjerpe made his Major League Baseball debut over the ...

Making his major league debut, Cooper Hjerpe retired all 12 batters he faced, striking out six of them, for a win in relief ...