After a simulated game at Angel Stadium on Tuesday, Weaver said: "Mechanically, something's just a click off. I'm just trying to get back to where I know I can be. It's getting close. I've had good days and bad days; I just need to get more consistent."
Weaver began the year 0-4 with a 6.29 ERA before posting a 1.98 ERA over a five-start stretch in May. He then navigated through June with a 6.58 ERA before getting placed on the shelf. The three-time All-Star is 4-8 with a 4.75 ERA on the season, while giving up a career-high 1.5 home runs per nine innings.
When Weaver does return -- perhaps early next week -- the Angels may choose to send Matt Shoemaker to the bullpen, even though the 28-year-old right-hander has given up just seven runs in his last 24 1/3 innings.
First pitch for Weaver's rehab start at San Manuel Stadium in San Bernardino, Calif., is on Thursday is 7:05 p.m. PT.
Alden Gonzalez is a reporter for MLB.com. Read his blog, Gonzo and "The Show", follow him on Twitter @Alden_Gonzalez and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.