Baldoquin (hamstring) was placed on the 7-day disabled list Thursday, Alden Gonzalez of MLB.com reports.
Baldoquin left Tuesday's game for High-A Inland Empire with an apparent hamstring injury, and though Gonzalez notes that the injury isn't believed to be serious, he'll land on the DL as a precaution. As a top-10 prospect in the Angels' system, it makes sense for the organization to take a cautious approach with him. He'll be eligible to come off the disabled list April 21.