マウンド上のピッチャーの後ろに、ボールが1個ある
A man in baseball team uniform on pitchers mound in throwing stance with mitt on a hand and ball in a hand with spectators in stands behind,baseball game is in progress,with pitcher throwing pitch,pitcher wears green and white uniform,and his glove is visible,other players,including teammates and opponents,are present,some standing near pitcher and others scattered around field