Post-Birk plans at C for Ravens

When the Baltimore Ravens signed veteran C Matt Birk away from the Minnesota Vikings back in 2009, they knew that he wouldn't be playing the next 10 seasons; so the four quality campaigns they got were a nice return. Birk plans to announce at a community event on Friday that he is going to retire after being a part of the Ravens' latest Super Bowl-winning team, according to ESPN AFC North blogger Jamison Hensley.