The umpire said the balk was called because of a start and stop.

Crew Chief Bruce Dreckman: “When they start bringing their hands up, they can’t bring them up and stop mid-stroke of their pitching delivery.”

His hands didn’t even move upwards at all. Unbelievable. https://t.co/wKULIolNwd pic.twitter.com/I3jLjamhhV

— Hunter Baumgardt (@hunterbonair) July 17, 2022