9:29pm: Arizona would like to re-sign Blanco, per Nick Piecoro of the Arizona Republic (Twitter links). With an oblique injury slowing Blanco, the club wasn’t “comfortable making the call on him for the Opening Day roster tomorrow” (the Article XX(B) deadline), thus leading to tonight’s move.
9:11pm: The Diamondbacks have released veteran outfielder Gregor Blanco, per a team announcement. He’ll return to the open market in search of another opportunity after failing to crack the team’s Opening Day roster.
The 33-year-old Blanco was an Article XX(B) free agent, meaning the club would have had to pay him a $100K roster bonus to keep him in the minors (assuming he’d not have opted out at that point).