On Monday, the St. Louis Cardinals will begin a series with the Pirates in Pittsburgh.
The Cardinals are coming off a 3-2 loss to the Seattle Mariners (at home) on Sunday.
St. Louis Cardinals Acquire 2-Year MLB Player
GettyLuis Peralta #41 of the Colorado Rockies makes his major league debut as he pitches during the sixth inning against the New York Yankees at Yankee Stadium on August 24, 2024 in New York City.
Before Monday’s game, the Cardinals announced the acquisition of a new player.
The Cardinals wrote (via X): “We have claimed LHP Luis Peralta off waivers from Colorado and optioned him to Memphis (AAA).”
Peralta has played part of two MLB seasons for the Colorado Rockies.
The 25-year-old has a 1-3 record with a 6.03 ERA in 37 career games.
Rockies Club Information wrote: “The Rockies announced today the following transactions: – Reinstated RHP Jimmy Herget from the paternity/restricted list. – Optioned RHP Seth Halvorsen to Triple-A Albuquerque. – Optioned LHP Sammy Peralta to Triple-A Albuquerque. Additionally, LHP Luis Peralta has been claimed off waivers by St. Louis. The Rockies have 25 players on their active 26-man roster.”
MLB Social Media Reacts To Peralta News
GettyLuis Peralta #41 of the Colorado Rockies celebrates after pitching a scoreless top of the seventh inning against the Chicago Cubs at Coors Field on August 30, 2025 in Denver, Colorado.
Here’s what people were saying about the news:
Jeff Jones: “Cardinals say they’ve claimed LHP Luis Peralta, Freddy’s brother, on waivers from Colorado and optioned him to Memphis. 40-man is full.”
John Denton: “The #STLCards have claimed LHP Luis Peralta off waivers from the #Rockies and optioned him to Memphis. Peralta, 25, appeared in 37 games for COL between 2024 & 2025 and struck out 14 in his 7.1 IP for Albuquerque (AAA). He is the brother of Mets RHP Freddy Peralta.”
@RedbirdFarmhand: “Peralta gives the Cardinals an intriguing lefty with options that they will be able to work on outside of Coors, should be an interesting development test for the system”
@RedbirdRiot: “Yes he’s the brother of Freddy Peralta -2024 MLB debut: 0.73 ERA in 12.1 IP -2025 MLB: 9.47 ERA, 2.32 WHIP in 19 IP  -2026 AAA before: 17.17 ERA, 14 ER in 7.1 IP with a 14:13 K:BB  Low-risk flier on a young guy with upside.”
@ThisIsMatthew97: “He won’t be in Memphis long”
GettyRelief pitcher Luis Peralta #41 of the Colorado Rockies delivers a pitch in the sixth inning against the San Francisco Giants at Coors Field on September 3, 2025 in Denver, Colorado.
Cardinals Right Now
The Cardinals are 14-13 in their first 27 games of the season, which has them at the bottom of the National League Central.
They are 7-5 in the 12 games they have played on the road.
Following four games against the Pirates, the Cardinals will return home to host Freddie Freeman and the Los Angeles Dodgers on Friday night.
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