The Milwaukee Brewers staged one of the biggest comebacks of the MLB season on Sunday when they rallied from an 8-0 deficit to defeat the Arizona Diamondbacks, 10-9. It's tied for the second-biggest comeback in franchise history and it's the biggest comeback since 2004, when Milwaukee rallied back from a 9-0 deficit against Cincinnati. It was tied with two other teams across baseball to turn the feat this season.

Arizona scored in the first and added seven runs in the third, chasing starter Frankie Montas from the game with eight runs (six earned) on his ledger.

You'd be forgiven for missing it. After all, the Brewers wrapped up the National League Central title earlier in the week and had only tiny odds of laying claim to a first-round bye, so the stakes have been perceptively lowered. Plus, with the Green Bay Packers thriving against the Tennessee Titans on the same day, it's understandable why attention may have shifted elsewhere once the deficit expanded to eight runs.

Here's how the Brewers clawed their way back, blow-by-blow, including a number of fortuitous breaks.

Step 1: Aaron Ashby takes care of the Diamondbacks in the third (Brewers down, 8-0)

Lefty Aaron Ashby, whose late-season return to form has been one of the big second-half story lines for the Brewers, entered the third inning with seven runs in and a runner on first. Ashby walked Geraldo Perdomo at the bottom of the lineup, but the ominous start was made moot when Pavin Smith struck out swinging to end the inning.

Step 2: Blake Perkins gets one back (Brewers down, 8-1)

Milwaukee finally found some offense against starter Jordan Montgomery, who came into the game with a 6.23 ERA. Montgomery retired six of the first seven he faced, but in the third, he allowed a leadoff single to Joey Ortiz and a one-out single to Jackson Chourio that put runners at the corners. Blake Perkins flared an opposite-field single to left field that scored the first run, though William Contreras and Rhys Hoskins struck out to end the threat.

Step 3: Brewers lefty relievers get it done (Brewers down, 8-1)

Ashby allowed a two-out single but pitched a scoreless fourth. DL Hall checked in after him and worked two innings, allowing no hits and a walk while striking out three. They set the stage for the Brewers to make a dent.

Step 4: A shaky defensive play helps two runs score in the fourth (Brewers down, 8-3)

The first three batters reach against Montgomery in the fourth, including Sal Frelick, whose double clanged off Smith's glove. That scored a run and put Gary Sánchez on third base. He trotted home on Ortiz's fly ball to right, the first out of the inning.

Step 5: Jackson Chourio comes through again, of course, and Joey Ortiz misses a stop sign (Brewers down, 8-4)

No rally would be complete without some Jackson Chourio magic; his two-out single scored Ortiz in the sixth. By now, Montgomery was gone, unable to finish five complete innings.

Reliever Yilber Diaz made a throwing error earlier in the inning on a pickoff that allowed Ortiz to reach second base, which was helpful when he scored on the two-out single to left. In fact, Ortiz ran through a stop sign from third-base coach Jason Lane and scored when the throw was offline.

Step 6: Two more runs in the seventh, but a missed opportunity for more (Brewers down, 8-6)

Hoskins doubled with nobody out to score Garrett Mitchell on a ball that center fielder Jake McCarthy very nearly flagged down at the warning track, but he got a little turned around. Willy Adames followed with his own double to make it a two-run game.

Adames even stole third to get there with still nobody out, but he was thrown out on a grounder hit by Sánchez — with the infield back and prepared to concede the run, no less. It was a baserunning gaffe that could have easily killed Milwaukee's momentum.

Step 7: A diving play to save some damage, but the Brewers get a bad call (Brewers down, 9-6)

Jared Koenig's one-out walk to Christian Walker turned into a run, but it could have been worse … and better. Ortiz made a sensational diving stop to rob Ketel Marte of extra bases, though on the play, Walker moved to second, and he scored on a two-out single by Randal Grichuk. The worse news for Milwaukee was that Marte had swung and missed at strike three, but home-plate umpire Mike Muchlinski ruled it a foul tip, believing he heard it hit the bat instead of Sánchez's glove and shin guard. That would have kept the runner from advancing and kept Grichuk's hit from yielding a run.

Step 8: Garrett Mitchell's hit vs. a lefty (Brewers down, 9-7)

Joe Mantiply retired the first two men he faced in the eighth, but things got wild from there, with the Brewers scoring four runs.

Chourio drew a walk on seven pitches, with two of the balls close to the zone, and Perkins singled. That brought up Mitchell; manager Pat Murphy has elected to pinch hit for Mitchell against a left-hander in the past, but not this time. The rocket went under the glove of third baseman Eugenio Suárez as he fell to his knees, a play he could have probably made. Chourio scored to make it a two-run game.

Step 9: Rhys Hoskins' awkward swing nets two runs (Brewers tie the game, 9-9)

With fireballer Justin Martinez summoned into the game, Mitchell stole second. Hoskins then went down and got a low pitch with a half swing to right, and both runners scored easily to tie the game at 9-9. Adames followed with a double into the left field corner. Hoskins, the team's slowest runner, was unable to get all the way around and had to stop at third.

Step 10: Jake Bauers gets a swinging bunt (Brewers lead, 10-9)

Jake Bauers hit a slow chopper that left no Arizona player with a clean play, and he raced to first as Hoskins scored the go-ahead run. On Wednesday, Bauers also had the hit that triggered a walk-off victory celebration against Philadelphia, and now here he was again with a big hit in a bit spot, albeit one that required some fortunate placement.

Step 11: Devin Williams (Brewers win, 10-9)

The Brewers are working with a more formal schedule for their relievers, knowing they're heading toward October baseball, so Williams was going to pitch in the game, anyway. It was just a nice coincidence that it turned into a save situation all of a sudden. Though Williams issued a leadoff walk to the speedy McCarthy, he struck out dangerous Corbin Carroll and induced a Suárez flyout to left after McCarthy had swiped second with one out. Williams then struck out Jose Herrera on four pitches to end the game with a 10-9 win.

This article originally appeared on Milwaukee Journal Sentinel: Brewers' comeback from 8-0 deficit vs. Arizona step-by-step