The Orioles, Rangers and Braves are also thought to be interested in dealing for Greinke, the 2009 American League Cy Young Award winner, although a person close to Greinke said that the Halos are a "perfect fit."
The Angels lavished huge contracts on Albert Pujols and C.J. Wilson this offseason, but they may have payroll flexibility for 2013 with club options on right-handers Dan Haren and Ervin Santana, the latter of which is expected to be declined barring a "major turnaround," according to Heyman.
The Brewers entered the break with a record of 40-45, eight games back in the NL Central and six back for one of two Wild Card spots. They've not yet decided whether they're sellers and will apparently use the first week or two after the All-Star break to sort that out.