The Kansas City Chiefs have signed Alex Smith to a four-year contract extension that will keep him as their quarterback for the long term, sources told ESPN on Sunday. Various media reports have the extension worth about $68 million. The Kansas City Star was the first to report the news. "It was a priority of ours to get this deal done and keep Alex in a Chiefs uniform long-term," Kansas City general manager John Dorsey said in a statement. "Alex is a proven leader on and off the field. He is a special individual with a lot of ability, and we are fortunate to have him here." Read more http://espn.go.com/nfl/story/_/id/1...ity-chiefs-agree-four-year-contract-extension