Matthew Robert Birk (born July 23, 1976 in St. Paul, Minnesota) is an American football center for the Baltimore Ravens. Lewis was drafted out of the Harvard University by the Minnesota Vikings with the 173rd pick in the sixth round of the 1998 NFL Draft. Birk formerly played for the Minnesota Vikings and signed a three-year, $12 million contract as a free agent with the Baltimore Ravens. He won Super Bowl XLVII with the Ravens when they defeated the San Francisco 49ers 34-31.