Justin Upton’s locker used to be located right next to Gerardo Parra’s in the Diamondbacks’ clubhouse.

“Oh, one of my best friends ever, for sure,” Parra said Monday. “I love J-Up. I miss him.”

As loudly as Upton is making his presence felt with his new team, the Atlanta Braves, his name has mostly been silent in the Diamondbacks’ locker room.

They don’t bring him up and there’s no reason to, really.

Yes, Arizona’s former right fielder clubbed another home run Monday — his major league-leading sixth through seven games — and he’s been blistering at the plate to the tune of a .423 batting average, a 1.192 slugging percentage, and a 1.641 OPS.

But even after a 4-for-4 day against the Marlins, it wasn’t enough to deter the Diamondbacks, who have been just as hot — if not more so — than their one-time star.

The Diamondbacks took a 5-1 record into Monday night’s three-game homestand against the struggling Pirates and with 71 hits as a group, already had exceeded their most ever through their first seven games, let alone six.

They’ve been a complete wrecking machine, offensively.

Considering Pittsburgh entered this series with a team batting average of just .119 and a collective on-base percentage of only .188, it was only natural to assume the good times would continue — until the pesky Pirates almost matched their season run total in one night in a 5-3 victory over the Diamondbacks.

Even in defeat however, Arizona’s hot start makes the trade of Upton to Atlanta back in January a bit of a non-issue — at least entering the second week of the season.