infielder

US /ˈɪnˌfiːl.dɚ/
UK /ˈɪnˌfiːl.dɚ/
"infielder" picture
1.

a player in baseball or softball who plays in the infield (between the bases)

:
The shortstop, a skilled infielder, made a diving stop to save a run.
The coach praised the infielder's quick reflexes.