Matt Birk announces retirement
The Baltimore Ravens' Matt Birk wrapped up one of the most distinguished careers for an NFL center, announcing his retirement Friday just 19 days after winning the first Super Bowl of his 15-year career. A sixth-round pick out of Harvard, Birk was ...
Baltimore Ravens' Matt Birk announces retirementNFL News
Baltimore Ravens center Matt Birk retiresUSA TODAY
Birk calls it a career after 15 yearsFOXSports.com
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