MLB St. Louis' Kim Kwang-hyun allowed two home runs in one inning for the first time since entering the big leagues.
He also suffered from lower back pain and had to go down the mound early.
Kim Kwang-hyun started in the home game against Cincinnati at Bush Stadium in St. Louis, Missouri, USA, and gave up two hits in three innings and allowed three runs.
Both of his two hits were home runs and he struck out three.
Kim Kwang-hyun went down the mound with pain in his lower back after pitching the 4th practice behind a 3-0 lead.
Kim Kwang-hyun's season average ERA deteriorated from 3.65 to 4.05.
Kim Kwang-hyeon, who blocked the first inning with a tripod, was shaken in the second.
In the second inning, he threw a 143km fastball to Stevenson, the first batter, and allowed a first solo shot that went over the left fence.
After that, Kim Kwang-hyun, who was driven to one-out first base by giving Palmer a ball that fit his body, also threw a 143km fastball at Jonathan India and allowed a two-run four that went over the left fence again.
This is the first time Kim Kwang-hyun has allowed two home runs in one game this season.
Kim Kwang-hyun blocked the 3rd inning again with a tripod and seemed to be gaining strength again, but after he practiced pitching before starting defense in the 4th inning, he noticed an abnormality in his body.
Eventually, manager Mike Silt came on the mound, and while talking to Kim Kwang-hyun, he accepted the ball.
Kim Kwang-hyun went down the mound after only playing three innings.
A local broadcaster said, "Kim Kwang-hyun felt a pain in his lower back," and Zachary Silver, a reporter in charge of MLB.com St. Louis, also tweeted, "Kim Kwang-hyun felt a pain in his lower back. This is the area where he was injured during spring camp."
Kim Kwang-hyun stepped into the plate once and stepped back with a shortstop grounder.