Montero takes the place of injured Cardinals catcher Yadier Molina, who was elected as the starter in the fan voting. Brewers backstop Jonathan Lucroy, who was elected on the players' ballot, will start the game in Molina's place.
"I just finished canceling everything, but Disneyland is going to stay there, the All-Star Game, you don't know when you can go again," Montero said. "We might go in the offseason now."
This is Montero's second All-Star selection, and he will join teammate Paul Goldschmidt, who was elected by fans to start the game at first base. Montero was also a replacement in the 2011 game that was held in Phoenix.
"It's always exciting and it's a blessing for me to be able to go to an All-Star Game and to stay healthy so far this year and to be able to do what I'm doing so far," Montero said. "So hopefully it keeps going, getting better. It's a pleasure to go to the All-Star Game with Goldy in the name of the Arizona Diamondbacks."
The 2013 season was a nightmarish one for Montero, who slumped to .230 and also battled an injured back.
This year, though, he has bounced back to hit .265 with a .765 OPS (on-base plus slugging percentage) heading into Friday's game.
"It was a little bit hard in Spring Training," Montero said about maintaining his confidence. "Mentally wise, I was probably putting too much pressure on myself to do so good this year. If I would have kept that mind, it probably would have cost me this season again, but I had a pretty good talk with [mental skills coach] Peter Crone and we had good chats and kind of cleared my head a little bit, and coming into the season, I felt pretty free mentally wise. I felt pretty good about myself and I didn't really have that pressure anymore."
The final phase of All-Star Game voting will again allow fans to help choose the Ted Williams All-Star Game Most Valuable Player Award presented by Chevrolet. During the Midsummer Classic, fans will vote exclusively online at MLB.com and via Twitter in the 2014 All-Star Game MLB.com MVP Vote Sponsored by Pepsi, and their collective voice will represent 20 percent of the overall vote that determines the recipient of the Arch Ward Trophy.
MLB.TV Premium subscribers, for the first time, will be able to live stream the All-Star Game via MLB.TV through FOX's participating video providers. Access will be available across more than 400 platforms that support MLB.TV, including the award-winning MLB.com At Bat app. MLB.com will provide extensive online coverage of the All-Star Week festivities.
The 85th All-Star Game will be televised nationally by FOX, in Canada by Rogers Sportsnet and RDS, and worldwide by partners in more than 200 countries via MLB International's independent feed. ESPN Radio and ESPN Radio Deportes will provide national radio coverage of the All-Star Game. MLB Network and SiriusXM will also provide comprehensive All-Star Week coverage. For more information, please visit allstargame.com.