What happened: The Chicago Cubs designated pitcher Drew Pomeranz for assignment on Tuesday. The transaction corresponds with Chicago activating Jameson Taillon from the injured list and adding newly acquired Aaron Civale to the active roster.

Why it matters: The moves arrive as Chicago attempts to stabilize its pitching staff ahead of the August 3 trade deadline. Reliever Phil Maton was also placed on the injured list with right knee tendinitis, forcing immediate adjustments to the bullpen structure.

What to watch: Chicago hosts the Detroit Tigers on Tuesday as management evaluates further bullpen upgrades.