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Quinn Mathews SP | STL
Cardinals' Quinn Mathews: Sent back to Memphis
The Cardinals optioned Mathews to Triple-A Memphis on Tuesday.
Mathews had a decent major-league debut last week in Toronto, allowing two runs with a 3:3 K:BB over five innings. With Hunter Dobbins replacing Dustin May in the Cardinals' rotation, Mathews will head back to Memphis for the time being. However, he is a good bet to make additional starts down the stretch for the big club.
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Raymond Kerr RP | ATL
Braves' Ray Kerr: Back to full health
Kerr (elbow) allowed one earned run on three hits and no walks while striking out four batters over three innings in two appearances for Double-A Columbus since being assigned to the affiliate Wednesday after being reinstated from Triple-A Gwinnett's 60-day injured list.
Kerr missed the entire 2025 season while recovering from the Tommy John surgery he underwent the previous summer, then opened the season on Gwinnett's injured list after experiencing a setback following his lone relief appearance in the Grapefruit League. The 31-year-old southpaw was cleared to begin a rehab assignment June 14 and made four appearances in the lower levels of the minors before being activated from the IL. After the pair of outings at Double-A, Kerr was promoted to Triple-A on Tuesday.
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Bobby Witt SS | KC
Royals' Bobby Witt: Reinstated from injured list
The Royals activated Witt (back) from the 10-day injured list Tuesday.
Witt is ready to roll following a two-week absence with low-back tightness. He did not go out on a rehab assignment, as Witt and the Royals were satisfied with how things went in a full workout over the weekend. The star shortstop has slashed .279/.350/.450 with 13 long balls and 30 steals across 414 plate appearances for Kansas City this season.
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Austin Gomber SP | TEX
Austin Gomber: Cut loose by Atlanta
Atlanta released Gomber on Monday.
Gomber will part ways with an organization for the second time this season, as the Rangers previously released him from a minor-league deal back in May. The veteran southpaw inked a minor-league pact with Atlanta shortly thereafter and went on to submit a 4.81 ERA, 1.24 WHIP and 34:14 K:BB over 48.2 innings at Triple-A Gwinnett.
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Elieser Hernandez RP | ATL
Elieser Hernandez: Reaches open market
Hernandez elected free agency Monday.
The 31-year-old right-hander will head to the open market after declining an outright assignment to Triple-A Gwinnett upon clearing waivers. Hernandez made two relief appearances for Atlanta before losing his spot on the 40-man roster, giving up one earned run on six hits and four walks while striking out six batters over six innings.
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William Dion RP | WAS
Nationals' Will Dion: Recalled from Triple-A
The Nationals recalled Dion from Triple-A Rochester on Tuesday, Spencer Nusbaum of The Athletic reports.
Dion was part of a collection of players acquired from the Guardians in Monday's Foster Griffin trade, and he will take Griffin's vacated roster spot. The lefty reliever holds a 4.58 ERA but a promising 25:3 K:BB over 19.2 innings across 12 appearances at the major-league level.
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Derek Hill CF | PHI
Phillies' Derek Hill: Belts go-ahead grand slam
Hill went 1-for-3 with a grand slam in Monday's 6-3 win over Washington.
Hill's first hit since July 20 was a heroic one, giving the Phillies a 4-3 lead in the seventh inning Monday. The journeyman outfielder has been effective in a part-time role since catching on in Philadelphia, slashing .275/.315/.522 with five home runs, two doubles, 13 RBI and four stolen bases over 74 plate appearances.
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Eddys Leonard LF | SF
Giants' Eddys Leonard: Called up from Sacramento
The Giants selected Leonard's contract from Triple-A Sacramento on Tuesday.
Leonard will grab one of the roster spots vacated following Monday's trade deadline. The 25-year-old has slashed .272/.361/.509 with 16 homers at the Triple-A level in 2026. Leonard has experience at every position other than pitcher and catcher, and he will be making his major-league debut when/if he gets into a game.
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Cesar Prieto 3B | STL
Cardinals' Cesar Prieto: Summoned from minors
The Cardinals recalled Prieto from Triple-A Memphis on Tuesday, Derrick Goold of the St. Louis Post-Dispatch reports.
Prieto is grabbing the roster spot vacated by Lars Nootbaar, who was traded to the Diamondbacks on Monday. The 27-year-old Prieto has slashed .307/.373/.517 with 12 homers in 2026 at Memphis but has gone just 1-for-23 in his brief chances at the major-league level the last two seasons. He'll likely be used primarily off the bench.