Illegal to get plastered drunk? As long as he does it in private and certainly as long as he doesn't drive, I'm not aware of a law that prevents someone from getting drunk. But regardless of that, I would hope that if the Twins found out about it, they would offer their employee assistance program. And if the Twins found out about it happening on a regular basis, that they would somehow mandate their employee assistance program (and whatever alternatives they may have under a player's contract). Sporting leagues aren't law enforcement agencies. They are privately owned entities that expect certain behavior from their employees. Those expectations are subject to certain contractual limitations (more at the major league level than the minor) but they exist nonetheless.