Major League Baseball imposed stricter limits on mound visits by players in an effort to speed up games, but decided against 20-second pitch clocks for 2018.
After more than a year of negotiations, the Major League Baseball Players Association refused to agree to the changes but also signed an agreement that it will not oppose the rules.
The amendments to the playing rules announced Monday include a general limit of six mound visits per nine-inning game without a pitching change, whether by a manager, coach or player.
