Arizona has claimed Wil Nieves off waivers from Colorado after the veteran backup catcher was designated for assignment last week.
Miguel Montero’s usual backup, Henry Blanco, has been sidelined by a thumb injury and is undergoing further tests to determine if he has a torn ligament.
Nieves is a career .226 hitter with a .568 OPS, which is the third-worst mark among all active non-pitchers with at least 750 plate appearances ahead of only Brandon Wood and Koyie Hill.