Mar. 15, 2018 9:34 AM PT10:34 AM MT11:34 AM CT12:34 PM ET16:34 GMT0:34 9:34 AM MST11:34 AM EST10:34 AM CT20:34 UAE12:34 ETNaN:� - The Washington Redskins have the continuity at quarterback they've wanted by signing Smith to a four-year contract extension. Smith was already signed at a salary-cap hit of $17 million for next season. His new agreement agreed to in January and signed Thursday that's worth $94 million with $71 million guaranteed means he's under contract through 2022. Analysis: The former Kansas City Chiefs quarterback turns 34 in May and will be entering his 13th NFL season. Smith replaces Kirk Cousins as the Redskins' starting quarterback after that relationship ended following six turbulent years. To acquire Smith, the Redskins sent a 2018 third-round pick and promising young cornerback Kendall Fuller to the Chiefs in a trade that became official Wednesday.