Wacha was shut down for the season Monday after aggravating his oblique injury, Jenifer Langosch of MLB.com reports.

EDGE Analysis

Wacha was scratched from a rehab start Friday with an issue which was apparently serious enough to end his season. He hadn't pitched at the big-league level since late June and had suffered multiple setbacks. He'll finish the year with a 3.20 ERA and an 8-2 record in 15 starts.

Wacha (oblique) was transferred to the 60-day disabled list on Monday.

EDGE Analysis

The move shouldn't affect Wacha's return timeline, as he's already been out for over 60 days. It remains unclear whether or not he'll be able to make it back before the end of the season, as he suffered a setback Friday and was scratched from a rehab start. If he does return, it will be in a bullpen role. The move opens up space on the 40-man roster for Adam Wainwright (elbow) to return from the 60-day disabled list.

Wacha (oblique), whose prospects of pitching again in 2018 remain uncertain, will definitely be used exclusively in a bullpen role if he does manage to return, Tyler Fenwick of MLB.com reports.

EDGE Analysis

The confirmation comes via manager Mike Shildt, who reached that conclusion after Wacha was unable to make his most recent rehab start for Triple-A Memphis on Friday. That was likely the right-hander's last opportunity to pitch at the minor-league level in 2018, as the Redbirds are already in the thick of the Triple-A playoffs. Wacha will continue to undergo further evaluation on his left oblique, with Shildt stating that he still doesn't know "when or if [Wacha's return] will be."

Wacha (oblique) won't make his scheduled rehab start at Triple-A Memphis on Friday due to oblique discomfort.

EDGE Analysis

Wacha will travel back to St. Louis for further evaluation. The next step in his recovery process figures to be revealed after being examined by team doctors, although this certainly isn't a positive sign for the 27-year-old right-hander.

Wacha (oblique) will make a minor-league rehab start for Triple-A Memphis on Friday, Derrick Goold of the St. Louis Post-Dispatch reports.

EDGE Analysis

Wacha, who was pulled off his rehab assignment at the end of August after suffering a setback, is hoping to throw around 40-to-45 pitches in his return to game action. The Cardinals will likely reevaluate him after Friday's outing before determining his next step.

Wacha (oblique) will throw a side session Sunday, Jenifer Langosch of MLB.com reports.

EDGE Analysis

The right-hander is also coming off a Saturday bullpen session, which apparently went off without any issues. Wacha will be reevaluated following Sunday's workload to determine if he's ready to return to the rehab assignment that was cut short last Tuesday when he felt some discomfort in a start for Double-A Springfield.

Wacha (oblique) will throw a bullpen session Saturday as he works his way back from a recent setback, Jenifer Langosch of MLB.com reports.

EDGE Analysis

Wacha had his rehab start Tuesday cut short and now may face a difficult time building back up to a starter's workload before the end of the season. It's unclear whether that will force the Cardinals into moving him into a relief role for the stretch run. He new timetable should become clearer once the Cardinals see how he responds to his bullpen session.

Wacha (oblique) was cleared to resume playing catch Friday, Jenifer Langosch of MLB.com reports.

EDGE Analysis

Wacha was examined by team doctors Wednesday and was given the go-ahead to resume throwing. He'll proceed to throwing off a mound in a bullpen session if all goes well Friday, and he could make another rehab start next week if he remains free of setbacks. Wacha had worked up to 52 pitches by the time he exited his start for Double-A Springfield last Tuesday, so he'd likely attempt to hit the 70-75 pitch range if he does toe the rubber in the minors on at least one more occasion.

Wacha (oblique) was examined by team doctors Wednesday and will have further testing done in the next couple days according to manager Mike Shildt, Derrick Goold of the St. Louis Post-Dispatch reports.

EDGE Analysis

Wacha is also slated to resume throwing by playing catch following the upcoming evaluations, after which he'll likely need to make at least one more rehab start according to president of baseball operations John Mozeliak. Team doctors also gave Mozeliak a generally favorable report on Wacha after examining him Wednesday, as he noted that there was nothing to be "overly concerned" based on the results provided.

Wacha (oblique) has returned to St. Louis to be examined by team doctors following his early exit from Tuesday's rehab start with Double-A Springfield, Jenifer Langosch of MLB.com reports.

EDGE Analysis

Wacha was seemingly on track to return to the big-league rotation at some point next week prior to the injury, which appears to be related to the original left oblique problem that landed him on the disabled list. The right-hander's projected return date almost assuredly gets pushed back at this point, with more clarity likely to be gained once the results of Wacha's medical evaluation are made public.