Linebrink this season is 3-and-3 with a three-point-80 E-R-A in 44 appearances. But he's allowed seven runs over two and two-thirds in his last three appearances.
The Padres acquired right-hander Will Inman, lefty Steve Garrison and southpaw Joe Thatcher.
The Brewers have been in first place in the N-L Central since a 25-and-11 start. But their eight and a half-game lead had dwindled to only three in the past week, while the team's struggling offense set up the slide.