HELENA, Mont. — Fighting off a Helena Senators' fifth-inning rally, pitcher Brandon Patch checked the runner on first base. The 18-year-old Miles City Mavericks' southpaw then went into his windup, delivering what looked sure to be another strike. Instead, the Senators' hitter connected squarely, smacking the baseball so hard that it was nearly impossible to follow — until it ricocheted off Patch's head. The ball eventually fell behind first base after traveling, by some accounts, as high as 50 feet in the air. Patch, pitching in what was to be one of his final games with his American Legion team,...