It's a ... fair ball; it rolls into the corner; Jones is stretching for two; the throw -- safe!.
(baseball) a ball struck with the bat so that it stays between the lines (the foul lines) that define the width of the playing field
A batted ball that first strikes the ground or leaves the playing field beyond first or third base within the foul lines or that is within the foul lines as it bounces past first or third base or that comes to rest or is touched by a fielder in front of first or third base within the foul lines