Muncy (knee) has begun using a stationary bike, and manager Dave Roberts said Friday that the third baseman is "trending really well," per MLB.com.

Muncy suffered a left knee bone bruise July 2 and was placed on the 10-day injured list the following day. He's likely to miss at least six weeks of action, so mid-August seems to be the earliest target for his return. Tommy Edman and Miguel Rojas have been handling duties at the hot corner while Muncy has been out.

Norby isn't in the lineup for Saturday's game against Baltimore due to left hand soreness, Nate Karzmer of FishOnFirst.com reports.

Norby has collected a base hit in each of his last five games, but he'll take a day off Saturday to recover from a hand injury that popped up during his final plate appearance Friday. Javier Sanoja will get the nod to start at third base instead while batting ninth.

Mauricio is not in Saturday's lineup against the Royals.

Mauricio likely would have been in Saturday's lineup, but Angel Zerpa has replaced Michael Lorenzen (illness) as the starting pitcher for the Royals. With a lefty now on the mound, Mauricio will shift to the bench with Tyrone Taylor entering the lineup to man center field.

Arenado (finger) isn't in the lineup for Saturday's game versus Atlanta.

Arenado sprained his right index finger during Friday's contest -- the second time he's done so in the past two weeks. He'll take a day off to heal Saturday, and the Cardinals may opt to keep him on the bench until play resumes following the All-Star break.

Shaw isn't in the lineup for Saturday's game against the Yankees.

Shaw has been held hitless in his last 21 at-bats and will get a day off Saturday to regroup. Jon Berti will start at third base and bat ninth for Chicago.

Atlanta placed Riley on the 10-day injured list Saturday with a right abdominal strain.

Riley's abdomen forced him to make an early exit during the fourth inning of Friday's contest, and now that further evaluation has confirmed a strain, he'll remain on the sidelines until at least July 22. Nacho Alvarez will come up from Triple-A Gwinnett to replenish Atlanta's infield depth, though Luke Williams is the most likely option to take over at third base until Riley returns.

Atlanta recalled Alvarez from Triple-A Gwinnett on Saturday.

Alvarez made his return to Gwinnett's lineup Friday after sitting out with an oblique injury, and he'll now move up to the majors to replace Austin Riley (abdomen) on the active roster. Alvarez has gone 3-for-30 across eight games in his MLB career, though he owns a 1.120 OPS through 12 Triple-A games this year.

Vientos went 2-for-5 with a double and three RBI in Friday's 8-3 win over the Royals.

With the Mets down 3-2 in the top of the eighth inning, Vientos stepped to the plate with the bases loaded and cleared them with a double to right-center field, putting New York into the lead for good. The 25-year-old has struggled to recapture his 2024 form, slashing a weak .217/.275/.350 through 64 games this season with six home runs and 24 RBI, but Vientos has recorded multiple hits in two of the last three games and has a clear path to at-bats at designated hitter in the short term due to both Jesse Winker (back) and Starling Marte (knee) currently being on the injured list.

Arenado was removed from Friday's game against Atlanta with a sprained right index finger, Derrick Goold of the St. Louis Post-Dispatch reports.

Arenado injured the same finger toward the end of June, which caused him to miss the first two games of July. If he ends up having to miss more time, Thomas Saggese would likely fill in as St Louis' third baseman.

Riley was removed from Friday's game against the Cardinals with lower-abdominal tightness.

Riley went 1-for-2 with an RBI and a run scored before being lifted for a pinch hitter in the fourth inning. The severity of his injury remains unclear, but if he's forced to miss any amount of time, Luke Williams would be the favorite to pick up reps at the hot corner.