They stand roughly 10 feet apart, over in foul ground, typically more than four hours before the first pitch.
Danny Santana, the Twins' talented young shortstop, squats down a bit in his club-issued dark blue T-shirt and workout shorts. Wearing his prized leather glove, he assumes a fielding position and waits.
Gene Glynn, the team's third base coach and infield instructor, faces his willing pupil and gently directs another baseball at him every few seconds.
Backhand. Forehand. Straight on.
Ground level. Waist level. Eye level.
For most of the drill, Santana reaches into his glove and tosses the ball back to Glynn with his throwing hand.