Tigers: Verlander undergoes 'core muscle' surgery

The Tigers took to Twitter Thursday to assure fans that Justin Verlander's surgery had gone well and that the ace should be ready for spring training and Opening Day.

The Tigers announced Thursday that Justin Verlander injured himself in late December while performing his offseason workouts.

Tim Fuller / USA TODAY Sports

The Tigers took to Twitter Thursday to assure fans that Justin Verlander's surgery had gone well and that the ace should be ready for spring training and Opening Day.

That was the good news.

The bad news?

Until the team's announcement, no one even knew Verlander was injured, much less badly enough to require "core muscle repair surgery" in Philadelphia.

In a vague statement released to the media only moments before it hit Twitter, the team announced that Verlander injured himself in late December while performing his offseason workouts. The injury, whatever it was, was serious enough that he traveled to Philadelphia to be operated on by Dr. Bill Meyers.

The Tigers used the same wording -- "core muscle repair surgery" -- when Miguel Cabrera had his surgery in October. That operation was also performed by Dr. Meyers in Philadelphia.

Verlander is expected to undergo six weeks of physical rehab and then be reevaluated. That means he'll be sidelined through at least the first few days of spring training, but Dave Dombrowski said he doesn't expect Verlander to miss any important time.

"We fully anticipate Justin to participate in spring training and be in a position to compete at the beginning of the 2014 season," the team president said in the statement.

Last season, Verlander had the best April of his career, going 3-2 with a 1.83 ERA, but struggled for the rest of the regular season. He returned to form in the postseason, though, posting a 0.39 ERA in three starts, with 31 strikeouts in 23 innings.