The Angels placed Lopez on waivers Tuesday, Jeff Passan of ESPN.com reports.
Lopez has pitched to a solid 2.31 ERA and 19:6 K:BB in 11.2 innings since being acquired from the White Sox in late July, but the Angels have made him available to other teams prior to the Sept. 1 postseason eligibility deadline. Lucas Giolito, Matt Moore, Hunter Renfroe and Randal Grichuk were also waived Tuesday in an attempted salary dump.