The last time the two exchanged words, it was on June 16 at Chase Field after Peralta hit Parra with a pitch. It was part of a tense series that saw Ryan Braun hit by a pitch the following night before Jonathan Lucroy answered with a go-ahead grand slam.
Parra suggested on Friday what many had long believed, that the tension took root in the 2011 National League Division Series.
But with one handshake, all was forgotten.
"Hermanos," center fielder Carlos Gomez said.
"I don't think nothing bad," Parra said. "That's baseball. That's baseball adrenaline. That's a great guy, great pitcher, too. [Now] that's my teammate out there. It's different now."
Parra was not in the lineup against Cardinals ace Adam Wainwright, but he expects to get semi-regular starts when the Brewers rest Gomez, right fielder Braun and left fielder Khris Davis. When Davis' left calf tightened up a bit in the middle innings (he'd fouled a pitch off his leg earlier this week against Tampa Bay), Parra took over and played the final three innings, striking out in his only at-bat. Davis said his injury is minor, and he expects to be available on Saturday.
Manager Ron Roenicke originally planned to start Parra on Sunday against Cardinals right-hander Lance Lynn, but St. Louis has shuffled its rotation, and newly acquired veteran John Lackey will start instead.
Parra arrived after a long day of travel and one delayed flight in Minneapolis.
"I'm a little bit tired," he said. "Yesterday was a lot of trouble, putting everything [together], packing. It's the first time [being traded] for me, but I'm happy. I'm happy I'm here."
What did he hear from Roenicke?
"He said maybe I'll play three [outfield] positions," said Parra. "Maybe play today, day off tomorrow, because he's going to try to play everybody, [keep] everybody happy. I'm here to play and be ready for everything -- for pinch-hitting, for running, whatever he needs. The plan is to win and go to the playoffs. With that, I'll be happy."
Said Roenicke: "Khris Davis is still our left fielder, and I told him that. But when the matchups have [Parra] in there, we'll try to get him in there."