ST. LOUIS — Cardinals ace Adam Wainwright will miss the rest of the season because of a torn left Achilles tendon.

Wainwright will have surgery later this week, likely Thursday, and recovery time is generally 9-to-12 months.

“Unfortunate news, but not unexpected after what we saw,” St. Louis general manager John Mozeliak said before the Cardinals played Philadelphia.

Phillies first baseman Ryan Howard also had a similar injury, sustained on the final out of the 2011 Division Series against St. Louis. Howard missed the first half of the following season.

“Totally been there,” Howard said.

Wainwright was hurt while batting Saturday.