Today's top sports stories:

Longtime New York Giants defensive end Osi Umenyiora has signed with the Atlanta Falcons for two years and $8.5 million. The two-time Super Bowl champ lives in Atlanta in the off-season, so this seems like a good spot for him. [N.Y. Daily News]

The NCAA Tournament returns Thursday night with the start of the Sweet 16. The matchups include: Miami vs. Marquette, Arizona vs. Ohio State, Indiana vs. Syracuse, and Wichita State vs. LaSalle. [USA Today]

Hall of Fame basketball coach Phil Jackson's life on Twitter got off to a rough start on Wednesday ... or so it seemed. Turns out, the joke was on us. [L.A. Times]

The St. Louis Cardinals and Adam Wainwright agreed to a five-year $97.5 million contract extension, which will keep the ace pitcher in red and white until 2018. Looks like a good deal for all involved. [Daily Statesman]

If you like to play dodgeball, then don't move to New Hampshire. One district in the "Live Free or Die" state just banned the game due to bullying concerns. [GuySpeed]