KANSAS CITY, Mo. (AP) _ Chiefs president Carl Peterson agreed to a four-year contract extension that keeps him with the team through the 2009 season.

In Peterson's 16 seasons in Kansas City, the Chiefs have made eight playoff appearances, won four AFC West titles and went to the AFC Championship in 1993. During the 17 years before Peterson arrived, the team reached the playoffs once and had only four winning seasons.

``Carl was instrumental in leading the Chiefs back to the top echelon of the NFL,'' owner Lamar Hunt said in a statement. ``This new contract will carry through his 21st season with the organization. Such stability is unusual in the front office of an NFL team and is a big plus for the football fans of Mid-America.''

But Peterson took his share of criticism after the Chiefs went 7-9 last season, finishing 31st in overall defense.

Before coming to the Chiefs, Peterson also served stints as director of player personnel for the Philadelphia Eagles and president and general manager of the USFL Stars.