Richardson’s ejection paved the way for Alyssa Nakken to coach first base, the first woman in Major League Baseball history to coach on the field in a regular-season game. Nakken was in the coaching box from the third through the ninth innings.

Here’s how Richardson described the events leading to his ejection: Shildt came over to the Giants’ dugout looking for Alex Wood when Richardson said, “Can I help you?” Shildt, who has known Wood for a long time, said, “I didn’t say anything to you,” and Giants manager Gabe Kapler came over to “defuse the situation.” Richardson told Wood that Shildt was looking for him, but Shildt begin retreating to third base.

“At that point in time, he yelled, ‘you need to control that m— f—,’” Richardson said. “I went to the top step and said, ‘Excuse me?’ I couldn’t believe what I heard. Gibson decided to toss me from the game.

“I say this because I think his words were disproportionately unwarranted and reeked undertones of racism when he referred to me as ‘that m— f—.’ As if I (could) be controlled or a piece of property or enslaved.”

Shildt, a Padres consultant who’s temporarily filling in for third base coach Matt Williams, who’s coming off hip replacement surgery, was unavailable for immediate comment. The exchange came shortly after Steven Duggar stole second base with the Giants leading 10-1 in the second inning. Some Padres expressed their dissatisfaction at Richardson, but the team was more upset in the sixth when Mauricio Dubon bunted for a hit with the Padres trailing by nine runs.

“I think it’s really important to understand what happened tonight,” Richardson said, “and the second part that’s equally disappointing is that me being tossed empowers that umpire and empowers this coach to continue to have conversations like that with people like me. That’s really unfortunate what happened tonight.”