The team will not officially activate Lowe until Tuesday, according to Alden Gonzalez of MLB.com. Los Angeles has the day off on Monday.
Lowe, 29, was placed on the DL April 20 due to neck stiffness. He had not been pitching particularly well prior to the injury. Over 6.1 innings, he had allowed eight earned runs on eight walks and four hits. He has only had one perfect outing in seven appearances thus far.
Brasier made just two appearances--both against the Baltimore Orioles--in his time in the majors. In the first, he allowed a two run homer to Nate McLouth. He pitched a scoreless inning in his second game, striking out two and walking one.
Despite Lowe's poor performance this year, the Angels will probably be happy to see one of their relievers come off of the disabled list. The team's bullpen has been hit hard by injuries this season and they still have Sean Burnett, Kenley Jensen, and Ryan Madson on the DL.