erratic pitch

The second an erratic pitch hits a batter, Costello’s fingers can tremor an improvised, “It Only Hurts For A Little While,” by The Ames Brothers.

Martin had made an acrobatic play in the field that very likely saved a run in the fifth inning and then blocked an erratic pitch by Sabathia in the same inning that certainly prevented another run.

He could throw a classic knuckler, a highly erratic pitch that could upend the game.