PHOENIX — Justin Upton is having a family reunion in Atlanta.

Arizona traded its star right fielder to the Braves on Thursday in a seven-player deal that sent former All-Star infielder Martin Prado to the Diamondbacks.

For the first time since he was a high school freshman, Upton will have older brother B.J. Upton as a teammate.

The brothers combine with Jason Heyward, who won a Gold Glove in 2012, in an outfield potentially packed with power and speed.

“If we push ourselves to the next level, I feel with the extra push from each other there’s no question we can be the best outfield in baseball,” Justin Upton said in a telephone interview. “I’m not going to give us that label until we prove it.”

The Braves, who also get third baseman Chris Johnson, are giving up one of their top pitching prospects, Randall Delgado, and three minor leaguers in the deal.

They are right-hander Zeke Spruill, shortstop Nick Ahmed and first baseman Brandon Drury.

Prado, projected to play third base for the Diamondbacks, can become a free agent after this season, but Arizona general manager Kevin Towers said he already was working with Prado’s agent on a long-term deal.

B.J. Upton, 28, signed a five-year, $75.25 million contract with Atlanta in November.

Justin Upton, who has five full seasons in the majors but is just 25, said he already got tips from his brother from afar. Now there will be more chances for the two to help each other.

“I think from that standpoint it will be good, but I think more than anything being able to show up at the ballpark genuinely excited every day and have that energy,” he said. “The more energy you can bring from the start every day, it makes you a better player.”

Braves general manager Frank Wren said he expects the brothers will push each other.

“I do think it will drive them,” Wren said. “We’ve been looking for that young dynamic, right-handed, power-hitting outfielder that can hit in the middle of the lineup and makes that other team think a little bit.”

The younger Upton, who has three years and $38.5 million left on his contract, had been the subject of trade speculation throughout the offseason and vetoed a trade to the Seattle Mariners.

Upton had his ups and downs in Arizona, and Towers believes the change of scenery will benefit the young player, who was just 19 when he came to the majors.

“The expectations were through the roof on him,” Towers said. “When the team struggled, it seemed like it was always because of Justin. That’s hard. We’re human beings. It’s hard to take when you’re a young individual trying to establish yourself.”

Now, Towers said, Upton has “an opportunity to go to a different place to where he’s going to fit in with some star players over there, where he’s just kind of a piece of the puzzle versus kind of the centerpiece and the big piece of the puzzle.