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Kapler says he will not be on the field for national anthem (1:21)

Kapler will not be on the field for the national anthem. (1:21)

6:29 PM ET

Tony La Russa disagrees with the form of protest that San Francisco Giants manager Gabe Kapler has taken in the wake of the latest mass shooting.

Kapler wrote this week that he will remain inside the Giants locker room while the national anthem is being played. La Russa does not believe in the cause.

La Russa said before his team hosted the Cubs that he was concerned about what was happening in the country. The flag and anthem are not appropriate places to voice your objections.

Nineteen children and two teachers were killed at an elementary school in Uvalde, Texas. Kapler wrote an article explaining why he can no longer stand outside while the anthem is being played.

Kapler wrote that his father taught him to stand for the pledge of allegiance when he believed his country was representing its people well or to protest and stay seated when it wasn't.

La Russa believes that Kapler's form of protesting is disrespectful to servicemen and women.

La Russa said that some of their courage comes from what the flag means to them. The cost they paid and their families. I think it is impossible to not salute the flag and listen to the anthem if you truly understand that.

Many of Kapler's fellow managers are offering their support for his decision.

Texas Rangers manager Chris Woodward said Kapler was brave.

Woodward said that everyone is frustrated in this country. It is not about which side you are on. We have to get better as a society. I will not make a comment on whether or not I would do what he did.

Kapler has been vocal about several subjects, and he is proud of him. He is a good friend of mine and the kind of guy I respect from afar, so if he is doing this, good for him. I know his reasons. I know there is a lot of people that will support him because he was very open about it.

New York Mets manager Buck Showalter said he respected how Kapler was going about it. I'm going to leave it at that.

The Washington Nationals manager said he rarely goes to the field for the anthem because of meetings.

If I am not out there it is not because I am boycotting anything.

Everybody has their own preferences. Gabe is his own person and he does what he wants to do. I do things differently than him.

Lovullo said that Kapler was a humanitarian and that he was very supportive of what Kapler was doing. It is a sad and touchy subject for me.

Los Angeles Dodgers manager Dave Roberts said Kapler is very passionate about things he believes in and that is his way of protesting. I don't think any of us are happy with what's happening in our country I respect people who use different platforms to address that.

The Associated Press contributed to the report.