the.com/infielder

The player paid to turn a routine grounder into a small miracle of geometry.

means A baseball defensive player stationed on the dirt around first, second, third, and shortstop — close to the batter and the diamond's inner action.

from Simply a compound of 'in' and 'field,' coined within baseball's own vocabulary in the 1800s as the sport formalized its positions — the infield being the diamond itself, as opposed to the grassy outfield beyond it. No hidden story here, just plain descriptive American sports English doing its job.

territory
First, second, third, shortstop — the diamond's inner ring
reaction time
Often under 0.4 seconds to react off the bat
shortstop premium
Best arm and range usually hidden at short
double play math
Turning two requires two infielders in perfect sync
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