The Astros transferred Brown (shoulder) from the 15-day injured list to the 60-day IL on Saturday.
Brown was given roughly a two-month return timeline when he was diagnosed with a Grade 2 right shoulder strain in early April, so his move to the 60-day IL won't affect when he returns. The right-hander began throwing bullpen sessions Friday and will likely do so several more times before getting the green light to throw live batting practice and eventually head out on a rehab assignment. Outfielder Rhylan Thomas was claimed off waivers from Seattle in a corresponding move.