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Carlos Narvaez C | BAL
Orioles' Carlos Narvaez: Sitting after three straight starts
Narvaez is out of the lineup for Sunday's game against the Rays.
Narvaez will take a seat after starting the last three games, giving way to Yohel Pozo behind the dish Sunday. Though he's been operating as the Orioles' primary backstop since being acquired from the Red Sox on Aug. 3, Narvaez will likely see a steep drop in playing time once Samuel Basallo (shoulder) is ready to return from the injured list. Basallo is set to begin a rehab assignment Sunday at Triple-A Norfolk.
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Eduardo Valencia C | DET
Tigers' Eduardo Valencia: Pops another home run Saturday
Valencia went 2-for-4 with a home run and two RBI in Saturday's 4-3 loss to the White Sox.
While he's stuck behind Dillon Dingler on the depth chart, Valencia has managed to carve out some standalone fantasy value with his bat. The 26-year-old rookie has gone deep twice in his last three games and has six home runs overall through 18 contests to go along with a robust 1.291 OPS. Dingler has been excellent in his own right, so Valencia is highly unlikely to surpass him as Detroit's top catcher anytime soon. The Tigers could find more opportunities to get both sluggers into the lineup by using one as the DH, however.
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Sebastian Rivero C | LAA
Angels' Sebastian Rivero: Moved to 60-day IL
The Angels transferred Rivero (hand) to the 60-day injured list Saturday.
Rivero was pulled from his rehab assignment Monday after suffering a setback with his hand injury. He's been on the injured list since mid-June, so even though he's been shifted to the 60-day IL, he still could be back with the Angels before the end of the 2026 season. The move opens up a spot on the 40-man roster for Michael Fulmer, whose contract was selected from Triple-A Salt Lake.
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Samuel Basallo C | BAL
Orioles' Samuel Basallo: Starting rehab assignment Sunday
Basallo (shoulder) will begin a rehab assignment at Triple-A Norfolk on Sunday, Jacob Calvin Meyer of The Baltimore Sun reports.
Shoulder inflammation has kept Basallo on the shelf for most of the second half, but after getting the green light to resume taking batting practice Friday, the young backstop is now ready to test his shoulder in a game setting. The Orioles have traded Adley Rutschman to Boston since Basallo landed on the injured list, so the latter should have minimal competition for starts behind the plate once he's cleared to return. Basallo should also see ample playing time as a designated hitter on his non-catching days.
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Yainer Diaz C | HOU
Astros' Yainer Diaz: Idle Saturday
Diaz isn't in the lineup for Saturday's game against the Mariners, Brian McTaggart of MLB.com reports.
Diaz will move to the bench Saturday after going just 5-for-27 (.185) at the plate to begin the month of August. Christian Vazquez will replace him as Houston's catcher and bat ninth.
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Franklin Primera C | BOS
Red Sox's Franklin Primera: Climbs prospect rankings
Primera rose in MLB's prospect rankings to fourth in Boston's system after being unranked in the preseason, Brendan Samson of MLB.com reports.
Primera, who showed promise at the rookie-level Dominican Summer League in 2025, continued to trend upward in 2026. He slashed .427/.549/.718 during 32 games in the Florida Complex League and earned a promotion to Single-A Salem, where he continued to hit. The 19-year-old is slashing .333/.465/.490 over 29 games for Salem. He's brought an advanced approach, walking 37 times compared to 31 strikeouts between the two levels. He's played catcher only for Salem but was also used at first base in the FCL.
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Edgar Quero C | CHW
White Sox's Edgar Quero: Optioned to Charlotte
The White Sox optioned Quero to Triple-A Charlotte on Saturday.
Quero will give up his spot on the active roster to Jake Rogers, who was claimed off waivers from Boston on Friday. Quero has slashed just .208/.279/.262 across 210 plate appearances in the majors this season and will have an even harder time earning opportunities with the big club now that he's one of five catchers on the 40-man roster.
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Alejandro Kirk C | TOR
Blue Jays' Alejandro Kirk: Drives in two runs Friday
Kirk went 2-for-3 with a walk, an RBI double and a solo home run during the Blue Jays' 3-1 win over the Yankees on Friday.
Kirk put the Blue Jays ahead with an RBI double in the sixth inning before adding an insurance run with a long ball off Bradley Hanner in the eighth. Kirk has recorded two hits in three of his last four outings and has gone 15-for-39 (.385) with two home runs and nine RBI across 12 games in August.