ANAHEIM -- Angels left-hander Andrew Heaney will not make his next scheduled start against the Rangers on Friday due to a shoulder impingement, manager Mike Scioscia said Tuesday.
"He won't be on that turn, but we're optimistic that he'll be back in a reasonable amount of time," Scioscia said. "Something needs to calm down. He's going to play catch today and be evaluated all through this week, and then we'll see when he can get back out there to get in a game."
Heaney exited his start in Seattle on Saturday after experiencing soreness in his shoulder and underwent an MRI exam on Monday, which revealed "no acute strain," according to the club. Still, a clinical exam showed "symptoms consistent with internal impingement," prompting the Angels to deem him day to day.
Heaney missed most of the 2016 season and a significant chunk of this year while recovering from Tommy John surgery. He returned to the Angels' rotation in August, but he struggled to find his footing, logging a 7.06 ERA in 21 2/3 innings across five starts.
Scioscia said Heaney will have to go through a throwing progression and complete an "up-down" bullpen to simulate breaks between innings before the Angels determine when his next start will be.
"We'd rather obviously err on the side of caution," Scioscia said. "We don't take any chances on our pitchers, let alone what Andrew's been through. Hopefully he'll bounce back and be ready for a start in a reasonable amount of time, but it won't be on Friday."
The Angels have not yet decided who will start on Friday in Heaney's place, though Scioscia said it will likely be a bullpen game for the club. The Angels previously used the tactic against the Blue Jays on July 29, with Yusmeiro Petit handling the first three innings. Jesse Chavez and Troy Scribner are also potential candidates to start against the Rangers.
"We're looking at a couple things," Scioscia said. "One of the decisions is definitely who's going to start it. Other decisions are what options do you have as that game branches out and which way you want to go with it."
Maria Guardado covers the Angels for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.