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Jason Grilli is a pretty big fan of Japanese toy train videos

For some players, training in the offseason means practice or exercise. For Pirates right-hander Jason Grilli, offseason training has another meaning: digging through YouTube to find only the best Japanese toy train videos.

On Wednesday, the reliever tweeted that he had favorited two choice selections: one a montage of crashes on a Thomas the Tank Engine set, and the other, a truly creative setup that sees its track circle the bathtub a youngster is playing in. Check them out below:

-- Dan Wohl / MLB.com