Oh Seung-hwan of the St. Louis Cardinals gave up his first two runs of the season Wednesday against the Chicago Cubs.

The South Korean right-hander saw his scoreless innings streak snapped at eight innings, after allowing two runs in the top of the eighth inning on a rainy day at Busch Stadium in St. Louis.

Oh hadn't given up a run in 7 2/3 innings in seven appearances prior to this game.

Oh relieved starter Carlos Martinez to start the eighth, with the Cardinals ahead 4-1. The game was delayed by more than three hours after the top of the seventh, and Oh looked shaky out of the gate.

He gave up an infield hit to Dexter Fowler, the first batter of the inning, and then walked Jason Heyward on seven pitches.

Ben Zobrist lined out to right field, with Fowler moving to third on the play.

Anthony Rizzo then singled to right to drive in a run, the first earned run given up by Oh this season.

With runners still at the corners with one out, Oh got Kris Bryant to hit a grounder to second, but the Cards' infield could only get the force at second, allowing Heyward to score the second run of the inning.

Oh retired Tommy La Stella on a fly out to center to end the inning.

Oh needed 30 pitches to get through the long inning. His ERA jumped to 2.08. This was also the first outing in which Oh failed to strike out a batter.

The Cardinals added an insurance run in the bottom of the eighth and won the game 5-3. (Yonhap)