Walker, a first-round pick by the Cardinals in 2020, made the Opening Day roster at the age of 20 this season, making his debut on Opening Day. He remarkably recorded a hit in each of his first 12 major league games, hitting four extra-base hits and adding 8 RBIs.

He then had a 1-for-16 stretch but started to turn things around, grabbing a hit in each of his last three games with 3 RBIs. He hasn’t played since Sunday, with the Cardinals opting to hold him out of the lineup for two straight games before sending him to Triple-A Memphis. This will be Walker’s first time in Triple-A despite playing 201 games in the minor leagues.