Answer: knuckleball

AnswerCrossword Clue
KNUCKLEBALLUnique slow pitch
KNUCKLEBALLPitcher's choice
KNUCKLEBALLFluttering baseball pitch
KNUCKLEBALLTricky pitch
KNUCKLEBALLTough-to-hit pitch
KNUCKLEBALLPitcher's specialty.
KNUCKLEBALLSpecial kind of pitch.
KNUCKLEBALLWavering pitch.
KNUCKLEBALLSlow pitch with a little spin
KNUCKLEBALLCertain slow pitch
KNUCKLEBALLUnpredictable pitch
knuckleballA slow pitch that has virtually no spin and moves erratically, typically made by releasing the ball from between the thumb and the knuckles of the first joints of the index and middle finger
knuckleballa baseball pitch in which the ball is gripped with the knuckles