Alberto won't make a scheduled appearance Monday versus the Rockies due to back tightness, James Fegan of SoxMachine.com reports.
Alberto is expected to be ready to pitch in a day or two, so he's not believed to be dealing with a significant setback. The 24-year-old is trying to win a bullpen spot with the White Sox after being plucked in the Rule 5 Draft. Alberto has yielded three runs with a 4:2 K:BB over five innings so far this spring.