MILWAUKEE -- One Milwaukee Brewers pitcher spent a part of his offseason far away from the game of baseball - in fact, he was deep undercover in southeast Asia helping to rescue teenage sex slaves.

Blaine Boyer has been in the major leagues for more than a decade, but now he's pitching with the Brewers.

As Tim Keown writes for ESPN, Boyer and his longtime friend and former Chicago White Sox player, Adam LaRoche, both spent more than a week last November "in Southeast Asian brothels, wearing a hidden camera and doing undercover work."

The two players worked with a nonprofit called The Exodus Road, an organization that works to counter human trafficking.

As Boyer told Keown, the experience was harrowing:

"Something huge happened there for us," Boyer says. "You can't explain it. Can't put your finger on it. If you make a wrong move, you're getting tossed off a building. We were in deep, man, but that's the way it needed to be done. Adam and I truly believe God brought us there and said, 'This is what I have for you boys.'"

Check out Keown's full column here.

So far this season Boyer has tossed 3.2 innings for the Brewers, giving up just three hits and no runs.