Nolan Arenado hit a bases-loaded triple in St. Louis’ four-run sixth inning, Miles Mikolas pitched six strong innings and the Cardinals held on to beat the Arizona Diamondbacks 4-3.

Nolan Arenado's triple to left makes it 4-1 Cardinals vs. the Diamondbacks.

Arenado's bases-clearing triple off former Cardinals pitching prospect sends host Cardinals to a 4-3 victory, makes a winner of Miles Mikolas on Friday.

Jordan Walker had two hits and drove in three runs, rebounding from a critical fielding gaffe with an RBI single that lifted the St. Louis Cardinals to a 6-5 win over the Arizona Diamondbacks

Jordan Walker comes through in the 8th with a single to give St. Louis a 6-5 lead.

St. Louis Cardinals first baseman Willson Contreras will miss Friday night’s game against Arizona due to back spasms

Shortly after batting practice concluded at Busch Stadium, the Cardinals scratched Willson Contreras from the starting lineup due to back spasms that gripped their first baseman. Contreras was replaced at first base by Alec Burleson.

St. Louis Cardinals first baseman Willson Contreras was a last-minute scratch from Friday night’s MLB matchup against the Arizona Diamondbacks due to back spasms, prompting major lineup changes.