It seemed like the Arizona Diamondbacks were nowhere near ready to take this series, as they trailed 7-0 through the first five innings.

Suddenly, the St. Louis Cardinals lost control. Arizona scored three runs in the sixth, added two in both the seventh and eighth, and then Max Kepler walked things off in the bottom of the 10th to pull out an 8-7 victory.

Arizona may have needed an extra inning to get the job done, but they scored eight unanswered against a team that remains four games above .500. With the win, the Diamondbacks improved to 51-48.

Former Cardinals slugger Nolan Arenado hit a massive two-run homer in the eighth inning to tie the game. 

In total, both teams combined for 15 runs and 23 hits. Arizona had a bit of an injury scare with Corbin Carroll, but other than that things went as smoothly as the D-backs could've asked with how poorly they looked through the first five innings.

Despite not officially allowing an earned run, Luis Gastelum was charged with the loss for the Cardinals. St. Louis gave him no run support in the top of the 10th, which was a testament to how well Juan Morillo pitched. He was able to record a huge double play in extra innings, and improved to 3-4 on the season.

The D-backs eventually got around to Cardinals starter Andre Pallante, but from there they teed off on St. Louis's bullpen.

Pallante was charged with three earned runs and then every single reliever allowed a run. Gastelum's was the only one who didn't have an earned run against him, while a pair had two, and Gordon Graceffo suffered his first blown save of the season.

In Diamondbacks history, there's never been a comeback greater than seven runs. Arizona wasn't able to outright set the record, but they tied the franchise mark for largest comeback in a game. 

It's certainly worth monitoring the status of Carroll as he was pulled late in the game for Jorge Barrosa. At this time, there are no further details on why he was removed, though AZSports' Alex Weiner noted, "Looked like something was wrong with Carroll on his last swing."

Regardless, Arenado came up clutch late, and Kepler was the hero. Elsewhere, four other Diamondbacks drew in runs, including Geraldo Perdomo, who hit a 242-foot little league home run in the seventh inning that kept Arizona's rally alive.

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