Pena (oblique) isn't in the lineup for Tuesday's game against the Athletics.

Pena was a late scratch from the lineup Sunday due to oblique soreness, and he'll need to miss at least one more start Tuesday while he recovers. Mauricio Dubon will take over at shortstop for the Astros and bat ninth.

Manager Bruce Bochy said Tuesday that Seager (abdomen) will miss the rest of the season, Jeff Wilson of AllDLLS.com reports.

Seager recently resumed light baseball activities after undergoing an appendectomy in late August, but the team won't bother rushing him back now that they sit five games back of a wild-card spot with only six left to play. Despite missing time this year with hamstring injuries in addition to his recent procedure, the 31-year-old slashed .271/.373/.487 while collecting 21 home runs, 50 RBI, 61 runs and three stolen bases across 102 games.

The Padres activated Bogaerts (foot) from the 10-day injured list Tuesday.

In a corresponding move Tuesday, the Padres optioned Will Wagner to the Arizona Complex League. It was initially thought Bogaerts would return during this past weekend or Monday, but he had delays regarding his pregame workouts for his fractured foot. The shortstop is batting second Tuesday at home versus the Brewers, who are sending lefty Bruce Zimmermann to the mound.

Baez was scratched from the lineup ahead of Tuesday's game versus Cleveland due to neck stiffness.

Baez will take a day off to rehab his neck injury, opening up an opportunity for Trey Sweeney to start at shortstop and bat ninth for the Tigers.

Smith was scratched from the lineup ahead of Tuesday's game versus the Twins due to an elbow infection, Kennedi Landry of MLB.com reports.

Smith had originally been slated to start at shortstop and bat third Tuesday, but his elbow will instead cause him to miss the series opener. Ezequiel Duran will fill in as Texas' shortstop and bat ninth.

Nunez will start at second base and bat leadoff in Tuesday's contest versus Atlanta.

It's the fourth straight start for Nunez and the second straight day he's been in the leadoff spot. He enters play Tuesday having homered in back-to-back games and is 9-for-30 with four home runs and a stolen base in September. Nunez could continue to push Luis Garcia -- who is making his first-ever start at first base Tuesday -- for playing time at second base down the stretch.

Nunez went 3-for-4 with a solo home run, an additional run scored and a walk in Monday's 11-5 loss against Atlanta.

Nunez jumped on the first pitch of the game and sent it the other way for a leadoff homer to give Washington an early edge, though the lead didn't last long in an eventual loss. The infielder has now gone deep in consecutive games and is swinging it well, producing a .939 OPS with four homers and nine RBI over his past 15 contests.

Winn will have a consultation Wednesday and then undergo arthroscopic surgery on the meniscus tear in his right knee Thursday in Dallas, John Denton of MLB.com reports.

More details regarding Winn's post-op rehab should be available following the operation, but the full expectation is that he will be 100 percent for the start of spring training. Winn played with the injury for several months before the decision was made in mid-September to shut him down. Thomas Saggese has been filling in at shortstop for the Cardinals since Winn was placed on the 10-day injured list.

Bogaerts (foot) now appears set for activation from the 10-day injured list Tuesday, Kevin Acee of The San Diego Union-Tribune reports.

Previous reports indicated Bogaerts would return from his left foot injury Monday. However, he went through another pregame workout Monday instead, as the Padres have apparently elected to give him one more day before he's reinstated. Jose Iglesias is starting at shortstop for the Padres in Monday's game versus the Brewers.

Abrams (shoulder) will start at designated hitter and bat second in Monday's game in Atlanta, Bobby Blanco of MASNSports.com reports.

Abrams didn't play in Sunday's 3-2 victory over the Mets after he jammed his right shoulder late in the Nationals' 5-3 win in 11 innings a day earlier, but he'll be cleared to rejoin the starting nine as Washington opens a three-game set in Atlanta. However, Abrams won't be entering the lineup at shortstop for the first time this season, as Washington will ease him back into action in a non-defensive role. Nasim Nunez will get the nod at shortstop Monday.