Padres star's grand slam sparks debate about baseball's unwritten rules

San Diego Padres manager Jayce Tingler was less than pleased when budding star Fernando Tatis Jr. returned to the dugout Monday night after missing a take sign, swinging on a 3-0 pitch with a seven-run lead in the eighth inning and hitting a grand slam at Texas.

from CBC | MLB News https://www.cbc.ca/sports/baseball/mlb/fernando-tatis-jr-grand-slam-missed-sign-mlb-1.5690604?cmp=rss
via CBC