The move is retroactive to Wednesday, but Rockies manager Walt Weiss could tell something was off with Brown before that. The same injury forced Brown out of action for nearly three weeks in May, and Weiss said the symptoms returned on Colorado's most recent road trip.
"He had a pretty good run there for a week or so, but this last road trip was a struggle for him," Weiss said of Brown. "We've got to get him right here for a few weeks.
"To me, he just didn't look like himself, especially in Houston in his last outing."
That appearance came on Tuesday, when Brown served up a solo homer to Hank Conger and needed 30 pitches to get through just one inning. It was the first run Brown had given up since June 2, and the first home run he had surrendered since returning from the DL.
"The same issues are kind of lingering," Weiss said. "It's pretty much the same symptoms he had before, so we're going to let this thing calm down. Just watching him with my eyes, he didn't look the same. He didn't look right to me."
Bergman, meanwhile, returns to the Rockies one week after being optioned. He made just one start with Albuquerque, tossing three scoreless innings while striking out four.
As Colorado's long reliever, Bergman wasn't seeing much action before his demotion, so the Rockies sent him down to keep his curveball sharp. The lone Triple-A appearance was Bergman's first start since April 14, but Weiss said Bergman will primarily return to his innings-eating role out of the bullpen.
"I got something out of it," Bergman said. "I didn't want to go down there and just waste my time. It was good to get in the game and get a start like that.
"But at the same time, I want to be here [in Colorado] contributing."
Dargan Southard is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.