Shaw went 3-for-4 with a solo home run, a stolen base and three total runs scored in Wednesday's 10-3 win over the Mets.

Shaw played a key offensive role from the No. 9 spot in the lineup, delivering his 13th home run of the season and 17th stolen base. While the rookie is batting just .230 with a .298 on-base percentage, his combination of power and speed hints at his potential in 2026 and beyond. Shaw has also played well lately, as he's riding a four-game hitting streak and is batting .467 during the stretch.

Chapman isn't in the lineup for Wednesday's game against the Cardinals, Shayna Rubin of the San Francisco Chronicle reports.

Chapman will take a seat for Wednesday's series finale after going 2-for-8 with an RBI and two runs scored over the first two games versus St. Louis. Casey Schmitt will shift over to third base as a result, opening up second for Christian Koss.

Hayes is not in the lineup for Wednesday's contest against the Pirates.

Hayes enters play Wednesday in a 0-for-24 drought at the plate, so he will begin the game on the bench. The Reds are rolling out Sal Stewart at third base as they try to even the series.

House is absent from the lineup for Wednesday's game against Atlanta.

House will get a breather during Wednesday's matinee after starting the last four contests. Paul DeJong will occupy the hot corner and bat ninth for the Nationals.

Karros went 2-for-4 with an RBI on Tuesday against the Mariners.

Karros recorded an RBI in his second consecutive game after knocking in a run with a single in the second inning. He remains the Rockies' primary third baseman, starting 16 of 20 games in September. However, Karros has hit only .222 with three RBI and six runs scored in that span.

Arenado went 2-for-5 with a solo home run and a stolen base in Tuesday's 9-8 win over the Giants.

Arenado ended a power drought of 33 games, though he also missed a month and a half in that span due to a right shoulder strain. He has gone 8-for-30 (.267) with four extra-base hits and seven RBI over eight games since his return from the injury. Overall, the third baseman is at a .238/.292/.373 slash line with 11 homers, 50 RBI, 47 runs scored and three steals over 104 contests. Barring a massive surge this week, Arenado will finish the season with an OPS under .700 for the first time in his career.

Machado is not in the starting lineup Tuesday against the Brewers.

Machado will take a seat for just the second time this season as the Padres go to battle with Milwaukee. The Padres clinched a playoff berth by winning Monday's series opener 5-4 in 11 innings, so it makes sense to give Machado a little extra rest. Jose Iglesias will draw the start at third base and bat sixth in his place.

Shaw (personal) will start at third base and bat eighth in Tuesday's game against the Mets.

Shaw was away from the club Sunday in order to attend a funeral, but he's back in action Tuesday following the Cubs' team off day Monday. The rookie infielder is slashing just .200/.297/.309 in September.

Alvarez (thumb) will start at third base and bat ninth in Monday's game versus the Nationals.

Alvarez was unable to participate in Sunday's game against the Tigers due to a laceration on his thumb, but he's been cleared to return to action after being given a day to let the injury heal. The 22-year-old cranked his first two major-league home runs in his last game Saturday in Detroit.

Mauricio has just six plate appearances in September, going 1-for-5 with a single and a walk.

The 24-year-old infielder disappeared from the second base/third base mix down the stretch, while Brett Baty and Mark Vientos took on near-everyday roles. Per Tim Britton of The Athletic, Mauricio remained on the big-league roster rather than being swapped out for a player that manager Carlos Mendoza might have been more willing to use to preserve his final minor-league option for 2026 -- had he spent three more days on a minor-league roster, the option would have been burned. Through 58 games this year for the Mets, Mauricio is slashing .231/.293/.381 with six homers and four steals, but he still appears to be part of the organization's long-term plans.