KANSAS CITY, Mo. -- The booing of beleaguered Home Run Derby captain Robinson Cano finally had faded by Tuesday afternoon. But the aftermath could cause Major League Baseball to consider a new rule to include at least one hometown slugger in future Home Run Derbies, commissioner Bud Selig said Tuesday.

The booing of Cano was inspired by his failure to pick Kansas City All-Star Billy Butler for the Derby after pledging earlier this month to include a Royal.

Last year's National League captain, Prince Fielder, received similar treatment in Phoenix for not picking Arizona Diamondbacks outfielder Justin Upton.

So Selig conceded those displays of "hometown loyalty" could spark changes to head off similar outbursts in future Derbies.

"We'll talk about this [potential rule change]," Selig said during his annual session with the Baseball Writers Association of America. "While I understand [the feelings of fans in] Kansas City ... I felt very badly last night. I felt badly last year for Prince. This was tough."

When another questioner observed the heat -- and boos -- could even intensify next year with the game scheduled for Citi Field in New York, Selig again lamented Monday's episode.

"It won't be any worse than last night," he said. "You can only boo so loud. ... But let me just say, we'll think about that."

MLB Players Association executive director Michael Weiner, who addressed the writers after Selig, said the issue is more complicated than that and said a rule requiring hometown approval might not necessarily be in the event's best interests.

"If we move to something where there's a spot reserved for one of the home-team participants, that would probably generate a lot of excitement in the ballpark," Weiner told ESPN.com following his formal remarks. "But I don't know how the ESPN producers would have felt if Mark Trumbo or Jose Bautista or Prince Fielder were left out of the event instead of Billy Butler.

"So on the one hand, if the union and the commissioner's office want to continue the captains format, the last thing we want to do is say to a player who volunteers to participate in an event and volunteers to be a face of the event [that] he is setting himself up to be booed. We don't want that. ... It sort of defeats the purpose of having players select their peers to be on their team if you have these kinds of restrictions. So I don't know which way it goes. But there will be continued discussions. And I don't know what kind of aftereffect it will have."