Grass on the infield
Dirt on the infield
a resin bag behind the rubber
throwing from the left of the rubber
he started from the stretch
a mound ten inches high
 a leg kick that means slow to the plate
a pretty nice infield
left foot will land toward home
Pitcher standing on pitcher's mound.
pitching mound on a baseball diamond
man pitching a baseball from the mound during baseball game standing in field in front of a pitcher