Jan 5, 2012, 9:44 PM EST
According to FOX Sports’ Ken Rosenthal, Cardinals pitching coach Dave Duncan is taking a leave of absence from the team to be with his wife, who underwent surgery in August of last year to remove a brain tumor.
“As far as how long he’ll be gone, no one knows,” Cardinals GM John Mozeliak said Thursday night.
The Cardinals’ front office is expected to make a formal announcement on Friday morning, with more details on the matter and perhaps some news about a temporary replacement.
Duncan is widely regarded as the best pitching coach in Major League Baseball. He worked alongside recently-retired manager Tony La Russa for 28 seasons with three different organizations.
UPDATE, 9:44 PM: According to MLB.com’s Matthew Leach, it is indeed being termed as a “leave of absence” by the Cardinals, who have released a short statement:
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