St. Louis Cardinals Roster Moves 6/5/2025

St. Louis Cardinals Roster Transactions | Inside The Diamonds

The St. Louis Cardinals have recalled right-handed pitcher Riley O’Brien from Triple-A Memphis ahead of today’s doubleheader against the Kansas City Royals. This move comes as the team looks to bolster its bullpen depth during a critical stretch of games.

Purchase tickets via Ticketmaster

Riley O’Brien

O’Brien, 30, made his MLB debut with the Cincinnati Reds in 2021. Since then, he has had stints with the Seattle Mariners and the Cardinals. He joined the Cardinals organization in 2024 and has spent time with both the major league and minor league teams. In his most recent appearances with Memphis, O’Brien showcased his potential. This prompted the Cardinals to bring him back to the big league roster.

In three games with the Cardinals this season, he’s posted a 10.13 ERA, a 1.88 WHIP, and two strikeouts in 2.2 innings. In 19 games at Memphis, he is 1-0 with a 2.79 ERA, a 1.24 WHIP, and 32 strikeouts in 19.1 innings. This decision reflects the team’s strategy to evaluate O’Brien’s performance at the major league level. This is crucial due to upcoming roster considerations.

Get Your Inside The Diamonds Merchandise Here

Looking Ahead

The Cardinals face a pivotal series against the Royals. O’Brien’s addition to the bullpen provides manager Oliver Marmol with an additional arm. This helps to navigate the challenges of a doubleheader. Fans will be watching closely to see how O’Brien’s skills translate back to the major league.

The first game of today’s doubleheader is scheduled to begin at 1:45 AM EDT, with the second game following at 7:45 PM EDT.

Leave a Reply

Detroit Tigers Announce Starting Rotation

The Detroit Tigers will start the season on Thursday on the road against the San Diego Padres. Everyone knows Tarik Skubal will get the ball to start the 2026 season but who follows him is now unknown. Framber Valdez will get the ball in the second game. Jack Flaherty wraps up the series with the […]

Read More

Boston Red Sox Name Opening Day Second Baseman

The Boston Red Sox start the season Thursday against the Cincinnati Reds in Cincinnati. The question as spring training wraps up is who will be the starting third baseman and second baseman on opening day. The third base question was answered the other day as Caleb Durbin was named the starting third baseman for the […]

Read More
Cincinnati Reds: "Six-Man Rotation" Might Be Hiding a Bigger Problem

Cincinnati Reds “Six-Man Rotation” Might Be Hiding a Bigger Problem

The Cincinnati Reds officially revealed their Opening Day Pitching staff—and one decision immediately stands out. Hunter Greene is expected to miss the first half of the season. To stabilize the rotation, the Reds are turning to a mix of youth and depth. Rhett Lowder, Brandon Williamson, and Chase Burns are all set to be part […]

Read More