As announced before the start of the season, 42-year old Adam Wainwright retired after an 18-year career with the Cardinals, which included three All-Star selections, two Gold Gloves, a Silver Slugger, and four top-three Cy Young Award finishes.

[3] The team added former Cardinals' infielder Daniel Descalso (2010–14) as its new bench coach on November 20, 2023, replacing Joe McEwing who got a job in the front office, assisting president of baseball operations John Mozeliak.

On November 21, 2023, the team officially announced that former Cardinals' starter Lance Lynn, 36 (2011–15, 2017) will return in a one-year deal for $11 million, with performance incentives and a 2025 club option.

[14][15] On the same day, retired Cardinals' Gold Glove catcher Yadier Molina agreed to be a Special Assistant to the president of baseball operations John Mozeliak.

"Tommy's strong fundamental play, athleticism and versatility remain a valuable asset that we view as an important part of our team identity," said president of baseball operations, John Mozeliak.

[29] On March 23, the Cardinals reassigned outfielder Victor Scott II and infielder Cesar Prieto to minor-league camp before their game on Saturday, their second-to-last in spring training.

[30] While playing in center field in the second inning in the first of two games against the Cubs on March 25, Dylan Carlson sustained a left shoulder injury in a collision with right fielder Jordan Walker when both were chasing a fly ball.

[31] Victor Scott II will be the Opening Day center fielder after the team learned that Carlson will miss several weeks with a sprained AC joint in his left shoulder.

Ryan Fernandez, the team's Rule 5 pick from Boston, makes the opening day roster and will be part of the right-handed relief group out of the bullpen.

Herzog's family is planning a private celebration of life service after a period of grieving, and ask that any donations be made to Shriners Hospital for Children in St.

[47] Biography On April 21, the Cardinals optioned OF speedster and elite CF defender Victor Scott II to AAA-Memphis, along with RH reliever Andre Pallante, 25.

[48] The lack of HRs for the Cardinals (13) and the amount of them off St. Louis pitching (26), the sixth-worst in MLB, have been a big reason for the poor start, remaining in last place in the NL Central.

[50] Sonny Gray (2–1, 1.04 ERA, 0.87 WHIP, .226 O-BA), lost his no-runs-allowed streak, and no-losses season on April 21, after 6.1 innings, giving up two runs in the seventh after one out, for the only scoring of the day for either team.

[67] Chris Roycroft, 26, (RH-reliever) made his MLB debut in the May 7 game, pitching in the ninth inning, giving up two hits, one run (solo HR), walking none, and striking out two.

[73] LH-reliever Matthew Liberatore, 24, tried to be an effective (fifth) starter, but in his three starts in 10 innings, he posted a record of 1–2, 8.10 ERA, 1.70 WHIP, with opposing batters hitting .341 against him, after Steven Matz went on the injured list on May 1.

[77][78] The eagerly-awaited broadcast combo of Chip Caray with the return of Joe Buck on May 24 was a washout because of rain that made the game a postponement about an hour-and-a-half after the scheduled start time, until its reschedule on July 13.

But the way Bally Sports Midwest’s telecast filled the bulk of that time was a disappointment for many tuning in not only for Buck's homecoming to his career roots but to hear him work with BSM lead Caray.

Alec Burleson scored the seventh and ultimately deciding run from first base, on a triple by Lars Nootbaar, with a deft head-first slide into home and touch with his fingers, that beat the throw, and as the replay on the scoreboard and in the officials in New York City showed after the Chicago challenge, their catcher did not transfer the ball from his barehand to his glove-hand tag, for a 7–4 lead.

[82] Pallante picked-up his first win of the season with help of a new pitch, a two-seam fastball that consistently ran in on the hands of righties and kept them from leaning out over the plate,[83] and Ryan Helsley earned his 18th Save.

RH-reliever Ryan Loutos, 25, made his MLB debut on June 1, in the bottom of the eighth inning at Citizens Bank Park, giving up one hit and one walk, no strikeouts, no runs.

He earned a computer science degree, and some years earlier worked for the Cardinals by helping write code for the app designed to assist pitchers in their development throughout the organization.

[92][93] Reserve catcher's Pedro Pagés first MLB Home Run, against arch-rivals Chicago Cubs on a warm June 14 afternoon at Wrigley Field, broke a tight 0-0 pitcher's duel in the eighth inning, for the team's third consecutive win.

win at LoanDepot Park Miami, last in the NL East (23–48, .324; R 245, RA 361 -116), solidified their hold on second-place, and pushed the team over .500 (36-35 .507) for the first time since April 6 (5–4), beating the Marlins at Busch Stadium.

The teams struggled into extra-innings, with each scoring the automatic second-base runner in the 11th for 5-each, then in the 12th, Masyn Winn knocked in his surprising fourth HR of the season, a two-run blast to give the Birds a 7–5 lead.

The Marlins started their half of the 12th with a disputed double from the ball rolling partially under the right-field wall's padding, that scored the automatic runner at second base, for a tight 7–6 lead.

After the umpires gathered to decide ruling it was a double, it went to the New York office for review, and on-appeal from Miami manager Skip Schumaker reversed the on-field decision to be a triple.

Reverend Bill Greason, who played with Willie Mays on the 1948 Black Barons squad that won the Negro American League pennant, threw out the first pitch.

They admired and respected each other during their playing careers that overlapped between 1951 through 1963, when the “Pride of N.L,” that was the phrase used on the 1963 Topps baseball card that featured both first-ballot Hall of Famers gripping the same bat.

[101] In the middle game against the Giants, won by the Redbirds 9–4, on Saturday June 22, to win the series, 3b-man Nolan Arenado was injured on a check swing during his final at-bat in the seventh inning.

In three major roster moves on June 28, the Cardinals announced the recall of RH-reliever Gordon Graceffo, 24 from AAA for depth, and relief from the worn-down pitching staff from a recent road-trip of five consecutive one-run games and two in extra innings.