The Diamondbacks optioned Kaiser to Triple-A Reno following Sunday's game against the Rockies.

Kaiser was called up by the Diamondbacks on Aug. 1 and saw his first major-league action since 2023, when he was a member of the Rockies. He appeared in five games (four starts) and went 2-for-14 (.143 average) with two RBI over that span. Kaiser will give up his spot on the 26-man active roster to infielder Ildemaro Vargas (foot), who was reinstated from the 10-day injured list.

Arizona reinstated Vargas (foot) from the 10-day injured list Monday.

Vargas has fully recovered from a fractured fifth metatarsal in his right foot that landed him on the 10-day IL in late June. He recorded a hit in each of his last three rehab games with Triple-A Reno, going 3-for-11 (.273) with two runs, one triple and one RBI over that span. Vargas will likely serve in a depth role in the infield upon his return, though he could get starts at third base in games which Blaze Alexander is out of the lineup.

The Cardinals placed Donovan on the 10-day injured list Monday with a left groin strain.

The Cardinals played a man short over the weekend with the hope that Donovan would be ready to return to the lineup early this week. However, he was ultimately not able to show enough improvement to avoid a stint on the IL. Donovan's IL placement is retroactive to Friday, so he will be eligible for activation Aug. 25. Thomas Saggese should continue to see the bulk of the playing time at second base in Donovan's stead.

Saggese will start at second base and bat seventh in Monday's game against the Marlins.

With Brendan Donovan (groin) landing on the injured list after sitting out each of the Cardinals' previous three contests, Saggese looks to have some short-term security in St. Louis' everyday lineup. Saggese will draw a ninth straight start Monday, after he went 9-for-30 (.300 average) with two RBI, three runs and one stolen base over the previous eight contests. However, Saggese has posted a .409 BABIP and a 0:8 BB:K during that eight-game stretch, so his overall production could look less appealing once his good fortune on balls in play inevitably takes a turn for the worse.

The Mets optioned Acuna to Triple-A Syracuse on Monday.

Acuna was up with the big club for just one day, after the Mets designated him as their 27th man for Sunday's 7-3 win over the Mariners in the Little League Classic in Williamsport, Pa. He played second base in the final two innings of the game but didn't receive a plate appearance.

Dodgers manager Dave Roberts said Sunday that Edman (ankle) has been able to take part in baseball activities and remains likely to return from the 10-day injured list at some point in early September, Sonja Chen of MLB.com reports.

Edman is further away from a return from the IL than fellow utility players Hyeseong Kim (shoulder) and Enrique Hernandez (elbow), both of whom are set to begin rehab assignments with Triple-A Oklahoma City this week. A clearer timeline for Edman's return should emerge once he's cleared for a rehab assignment, which could happen soon after he reaches the point in his recovery program that he's able to run the bases without any restrictions. Edman was placed on the IL on Aug. 4 due to a right ankle sprain, the same ankle that he had previously injured earlier in the season.

Dodgers manager Dave Roberts said Sunday that Kim (shoulder) will report to Triple-A Oklahoma City this week to begin a rehab assignment, Fabian Ardaya of The Athletic reports.

Roberts confirmed that Kim would be ready to test out his left shoulder in a game setting after the rookie was able to take live batting practice Sunday without issue. Kim, who has been on the injured list since July 29 while recovering from shoulder bursitis, could be ready to rejoin the Dodgers at some point in the final week of August if all goes well during his rehab assignment. Once he's activated from the IL, Kim could settle in as the Dodgers' primary second baseman in the short term, as Tommy Edman (ankle) isn't expected to be ready to return to action until at least early September.

The Cardinals intend to hold Donovan (toe) out of the lineup for a fourth straight contest Monday in Miami, Derrick Goold of the St. Louis Post-Dispatch reports.

Donovan has been dealing with a nagging toe injury, which the team believes has contributed to foot and groin issues. Manager Oliver Marmol said Sunday that Donovan isn't expected to require a stint on the 10-day injured list, and the second baseman could be back in action as soon as Tuesday.

Kaiser started at second base and went 0-for-3 in Sunday's 6-5 loss to the Rockies.

Kaiser, who gave Ketel Marte a day off at second base, played in the majors for the first time since 2023. With Blaze Alexander serving as the primary third baseman following Arizona's trade of Eugenio Suarez, Kaiser can fill the utility infielder role that once belonged to Alexander.

Fitzgerald went 1-for-4 with a solo home run in Sunday's 7-1 victory over the Rays.

The 27-year-old filled in for Casey Schmitt (forearm) at second base for the second consecutive contest and made the most of it. Fitzgerald cracked a 398-foot solo shot off Tampa Bay reliever Mason Englert in the seventh to go back-to-back with Drew Gilbert. After a breakout rookie campaign in 2024, Fitzgerald has struggled with a .220/.278/.335 slash line, four homers, nine steals, 19 runs scored and 14 RBI across 233 plate appearances this season. He should continue to play a starting role in San Francisco while Schmitt is out.