Explaining which St. Louis mound visit was a violation in Mets gameGame was delayed nearly 10 minutes as umpires sorted things out5/5/2021, 11:53 PMAndy MartinoMLB InsiderMay 5, 2021; St. Louis, Missouri, USA; St. Louis Cardinals pitching coach Mike Maddux (31) is stopped by umpire Mark Carlson (6) as he walks out to the mound to talk with starting pitcher Kwang Hyun Kim (33) during the fourth inning against the New York Mets in game one of a doubleheader at Busch Stadium. / Jeff Curry-USA TODAY Sports