The Rival in a Baseball Manga Just Wants to Stay Healthy

I was criticizing the plot of a manga I always read, [The Weakest Ace in High School], when I was reincarnated as the protagonist’s rival—Kim I-seon. Tall, handsome, a high school left-handed ace throwing 160 km/h. A talent even Major League scouts are watching. But in the ending, his shoulder and elbow are destroyed, forcing him to give up his career as a glass-body player. So I decided—I will somehow save this talent.