Two years ago, as the Chicago Cubs were beginning to build their winning chemistry under new manager Joe Maddon, a backup infielder found a unique way to add to the emerging vibe.
Jonathan Herrera made it a tradition for a hitter to rub his helmet demonstratively after he reached base -- in honor of then-teammate Starlin Castro, who often rubbed his head when he laughed.
Cameras often caught the helmet rub on the base paths, and the celebration took off to the point that Herrera had a helmet made with two fake hands pretending to rub the helmet attached to the top of it.