The Cubs made it official on Sunday: right-hander Shelby Miller is joining the North Side on a two-year deal that includes a team option for 2028. While the move had been reported late Friday, the club confirmed the signing and cleared a spot on the 40-man roster by designating infielder Ben Cowles for assignment.
Let’s break this down. First, Miller’s not expected to take the mound in 2026 as he continues to recover from his second Tommy John surgery.
So this isn’t about immediate bullpen help - it’s a forward-thinking move, a calculated bet on Miller’s potential value in 2027 and possibly beyond. The reported terms of the deal come in at $2.5 million total, which would put the Cubs’ Competitive Balance Tax (CBT) hit at about $1.25 million for the upcoming season - a manageable number for a club looking to build depth without overextending financially.
This is less about 2026 performance and more about roster strategy. By locking in Miller now, the Cubs are essentially stashing a potential high-leverage reliever for the future, while also giving themselves some flexibility on the 40-man roster.
Once spring training ramps up and roster decisions start to take shape, Miller - along with left-hander Justin Steele - can be shifted to the 60-day injured list. That opens up spots for non-roster invitees who might earn their way onto the Opening Day squad.
One of those names to watch is Dylan Carlson. The outfielder is in camp as a non-roster invitee, and he’s got a real shot at making the team as a fourth outfielder. If he impresses, the Cubs could find themselves needing a 40-man spot - and that’s where Miller and Steele’s IL designations become key.
As for Cowles, his removal from the 40-man raises eyebrows, considering he was only recently added. It’s likely he’ll clear waivers and stick around in camp, but the move underscores how fluid the roster can be this time of year. It’s all about creating space and keeping options open.
In the big picture, this is a classic example of a front office playing the long game. The Cubs are building out depth, managing their roster chessboard, and taking a low-risk flyer on a veteran arm who, if healthy, could give them a valuable bullpen piece down the line. For now, Shelby Miller won’t be part of the 2026 story on the field - but come 2027, he could be a name to remember.