Shortly after Jeter pulled himself Friday to rest an injured calf, his New York Yankees teammate joined him. The club announced Rodriguez would be absent because of a sore knee.
That made it three Yankees who won't play for the American League on Tuesday in Phoenix. Longtime closer Mariano Rivera will sit out to heal his right triceps.
"Unfortunately, I won't be able to go," Jeter said before Friday night's game against the Tampa Bay Rays was rained out.
Jeter is two hits shy of 3,000, and the 12-time All-Star was elected by fans to start. He came off the disabled list this week after recuperating from his calf problem.
Yankees manager Joe Girardi said it was totally Jeter's decision to skip the All-Star Game. Jeter talked it over with Girardi, general manager Brian Cashman and trainer Gene Monahan.
"It's probably best not to push it because it's most important to be ready for the second half. That's where my focus has to be," Jeter said. "It's unfortunate because you know how much I enjoy going to All-Star Games.
"I'm trying to be smart about it. I know I can be stubborn a lot of times with injuries," he said.
Rodriguez was getting an MRI for knee trouble that had seemingly sapped his power. The 14-time All-Star was elected to start at third base.
Shortly before the decision was announced, Girardi said it was up to Rodriguez.
"Alex has to make that choice. Would the rest help him? Probably," Girardi said. "He's banged up, he's played a lot."
Ethier, who had a 30-game hitting streak earlier this season, finished second to Victorino in online fan voting for the last player added to the team. Victorino is on the disabled list because of a strained thumb ligament.
"Sometimes you default into things and it's a good thing to default into," said Ethier, who will be playing in his hometown of Phoenix. "It's an honor to get selected by an opposing manager."
Ethier, who started for the NL in last year's game, is hitting .313 with seven home runs and 42 RBIs.
His streak is the longest in baseball this season.
Ethier said some of his friends and family had purchased All-Star tickets anticipating he would make the NL team. After he lost the online fan vote, he said they asked for his help in selling the tickets.
"I'm not a broker," he said, smiling. "Hopefully, they didn't sell."
Information from The Associated Press was used in this report.