Some of David Price's peers have copied his unusual minimalist delivery in recent seasons, with the small steps seemingly designed to reduce extraneous movement and improve his command. But those pitchers will probably have to clarify their intent for umpires, just as Price has been asked to do by Major League Baseball, whenever there is a runner at third base.
Price was first informed about the umpires' concern in spring training of 2016, according to a source familiar with the conversations. A memo about his delivery and that of the Rockies' Chris Rusin was drawn up at that time, and as more pitchers have mimicked Price's delivery, the source indicates, the memo became a rule.