Major League Baseball disciplines San Diego Padres relievers Ron Marinaccio and Craig Stammen after a pitch that hits Baltimore Orioles batter Gunnar Henderson. According to reports, MLB’s senior vice president for on-field operations, Michael Hill, concludes that Marinaccio intentionally hit Henderson with the pitch. The league also takes action involving Stammen, indicating MLB’s determination that the incident warrants punishment for both players. The disciplinary decisions are based on MLB’s review of the incident and on-field conduct around the at-bat in which Henderson is struck. Details of the specific penalties and timelines are not provided in the supplied summaries, but the reports agree that MLB issues discipline following its findings that the pitch was intentional on Marinaccio’s part. The cases are handled through MLB’s on-field operations process, which evaluates intent and potential violations of league rules related to pitching and batter safety.