General manager Billy Eppler said in a text message that Street had encountered a "mild shoulder impingement" at the outset of his throwing program, which prompted the Angels to slow him down. Street is currently throwing from 100 feet in his long toss program, Eppler added.
Street said on April 7 that he had been experiencing some shoulder stiffness, though he didn't consider the malady serious.
"I have a little stiffness up in the shoulder area, but you don't pick up a ball for four weeks and you kind of got to expect it," Street said at that time. "No alarm bells going off or anything like that."
Street, 33, is attempting to rebound from the worst campaign of his career, when he posted a 6.45 ERA across 22 1/3 innings before undergoing season-ending knee surgery in August. He is a potential free agent at the end of this season.
The Angels' bullpen is currently without two of its most experienced back-end options, as Street and Andrew Bailey are both injured. Bailey landed on the 10-day disabled list last week with right shoulder inflammation and has yet to pick up a baseball.
Bridwell, 25, had recorded an 18.00 ERA over two appearances at Triple-A Norfolk this year. He was ranked as the Orioles' No. 15 prospect by MLBPipeline.com and posted a 3.87 ERA over 27 Minor League outings, including seven starts, in 2016. Bridwell made his Major League debut with the Orioles last August and logged a 13.50 ERA in two appearances, allowing five runs over 3 1/3 innings.
• Albert Pujols received a scheduled day off on Monday, with Jefry Marte serving as the designated hitter against the Astros.
• Ben Revere started in left field for the third consecutive game, but manager Mike Scioscia said he still expects Cameron Maybin to earn most of the playing time there. Maybin is batting .212 with a .631 OPS, while Revere is hitting .217 with a .554 OPS.
"I think we're going to see how it matches up on a daily basis, Scioscia said. "We feel Cam is going to get the lion's share of playing time in left field, but right now we're mixing and matching a little bit until some of our guys get more comfortable."