Mariners president Kevin Mather is OUT in Seattle ... the org.'s honcho has just resigned after MLB and MLBPA officials say he made "inappropriate" and "disturbing" comments about his team.
Mather joined a call with a Rotary Club earlier this month and spoke at length about his team ... and in parts of the conversation -- which surfaced on video over the weekend -- he made cracks about some of his players' and staffers' abilities to speak English.
"There is no excuse for what was said," Stanton said, "and I won't try to make one. I offer my sincere apology on behalf of the club and my partners to our players and fans. We must be, and do, better."
Mather -- who was promoted to Mariners president and CEO back in 2017 -- had worked for the org. since 1996.