Washington Nationals’ lineup for tonight’s finale with the Miami Marlins...

Before the Washington Nationals scored five runs in the fifth inning on Sunday to blow the matchup with the Miami Marlins open in what ended up a 9-3 win, Adam Eaton connected on a big, two-out, two-run double that put the Nats up 4-1 in the fourth.

Eaton went down for a 1-2 slider inside from Marlins’ starter Humberto Mejía, and lined it to right to bring Luis García and Trea Turner around.

Eaton finished the game 1 for 4 with a walk and two RBIs, and he now has hits in seven of his last nine games, and the 31-year-old outfielder said he’s starting to find his rhythm as things really get going in this odd, crowd-less 60-game campaign.

“It’s been difficult for me,” Eaton said, “... as I know with other guys as well. It’s just kind of finding that adrenaline.

“As you guys know, I’m kind of a big adrenaline junky with just getting ready for the game, and getting pumped up, and getting going, and it’s just kind of, for me, it’s been kind of hard to find that type of rhythm.

‘Again with no fans, as well as it’s just been kind of a weird year for me. With the training in the kind of sleepier months of COVID early on, trying to train.

“Trying to get up to speed as quick as I can and I feel like I’ve been feeling better as of late, but day-to-day at this point, but like I said hopefully we can build on today.”

“Adam swung the bat really well,” manager Davey Martinez said Sunday’s win.

“He started swinging the bat better. Yesterday he hit a bullet to right field, so hopefully this gets them going a little bit.”

By “them” Martinez meant Eaton and leadoff man Trea Turner, more on that in a second...

“It’s kind of come and gone for me,” Eaton explained, “... but like I said, hopefully bring the same approach tomorrow and, like I said, try to get the rhythm of the season. It’s just like I said, the rhythm hasn’t really been there, but there’s no excuse, you’ve got be a professional at the end of the day, but again, we’re all kind of human, and like I said, the rhythm hasn’t really been there for me, and kind getting that grind mentality and having that dynamic usually helps me. But hopefully, like I said, we can find that.”

Eaton getting on base (after leadoff man Trea Turner, who’s turned it up at the plate as well), is big for the Nationals’ offense, and Martinez said on Sunday that he likes what’s he’s seen from both in recent games.

“When Trea and Adam Eaton do their thing at the top of the lineup, we score runs, and they both did well today.”

HERE’S THE NATIONALS’ LINEUP FOR THE FINALE WITH THE FISH: