Cubs Activate Kyle Tucker, Option Carlos Santana

11:49am: The Cubs have officially activated Tucker from the injured list. He’s hitting cleanup and serving as the designated hitter today. In a corresponding move, veteran first baseman Carlos Santana has consented to be optioned. He’ll be on the team’s taxi squad for the playoffs next week, per Patrick Mooney of The Athletic. Santana is a free agent at season’s end.

10:16am: After spending more than three weeks on the injured list due to a calf strain, Kyle Tucker is back for the final regular season series of the year. The Cubs outfielder himself tells ESPN’s Jesse Rogers that he’s in the lineup today — his first game since Sept. 2. The team hasn’t formally announced the move or a corresponding transaction yet.

The Cubs have already clinched a postseason berth, but these final three games will give Tucker a tune-up for their return to October baseball. The impending free agent has had a terrific season overall but will end up playing in, at most, 136 of the team’s 162 games due primarily to this calf strain. He’s hitting .270/.381/.472 (139 wRC+) with 22 home runs, 25 doubles, four triples, 25 steals and a matching 14.7% walk rate and 14.7% strikeout rate.

Tucker’s offensive numbers would likely be even more impressive had he not suffered a hairline fracture in his hand back in June. He gutted it out and played through the injury, which only came to light nearly three months later, after it had healed. Tucker hit well in June but saw his numbers drop precipitously in July. There’s no definitive way to know how much the small fracture impacted him, but he surely wasn’t playing at 100% throughout the entirety of the summer.

While Tucker was on the shelf, the Cubs went with a regular outfield of Ian Happ, Pete Crow-Armstrong and Seiya Suzuki, the latter of whom had most frequently served as the team’s designated hitter. That alignment opened the door for top catching prospect Moisés Ballesteros to step into the designated hitter spot on a regular basis, and he’s stepped up as one of the team’s most productive hitters this month. The 21-year-old slugger has taken 42 plate appearances since Tucker went down and turned in a stout .314/.429/.571 batting line. Ballesteros has been so productive, in fact, that he may have hit his way onto Chicago’s postseason roster.

“Moisés is playing at a really high level,” manager Craig Counsell tells Sahadev Sharma of The Athletic. “Where he’s hitting in the lineup should tell you a lot. He’s contributing offensively significantly. That’s real. That matters. Absolutely, we’re taking note of it.”

Ballesteros has batted fourth or fifth in each of his past ten games and hasn’t hit lower than sixth since being recalled from the minors prior to the team’s game on Sept. 12. The Cubs have shielded him from left-handed pitching, giving him only three plate appearances versus fellow southpaws. Presumably, if he were indeed to secure a spot on the playoff roster, he’d be utilized in a platoon capacity. With a full complement of Happ, Crow-Armstrong, Tucker and Suzuki ticketed for outfield/designated hitter work and Carson Kelly standing as the everyday catcher, Ballesteros probably wouldn’t be in the starting lineup much, but he could provide a potent left-handed bat off the bench.