The Baltimore Orioles have signed right-handed pitcher Collin McKinney, a 9th-round selection (260th overall) out of the University of Arizona in the 2026 MLB Draft. McKinney was part of a group of 16 players signed in a single wave of post-draft transactions, pushing Baltimore's total to 18 of their 20 draft picks signed, including each of their first 18 selections. He joins a deep class of right-handed pitching prospects inked in the same period, alongside Dominic Voegele, Ryan Piech, Ross Norman, Garrison Sumner, and Miguel Hugas.
The additions come as the Orioles are navigating a busy roster day, with the organization also designating RF Johnathan Rodríguez for assignment, optioning C Yohel Pozo and LHP Josh Walker to Norfolk, and losing RF Rudy Martin Jr. to the Toronto Blue Jays on a waiver claim. McKinney, as a late-round college arm, projects to enter Baltimore's minor league system and develop within an organization that has been aggressive in building pitching depth through the draft.