The Kansas City Chiefs will be without defensive tackle Ryan Sims for at least six weeks if not the whole season because of a severe foot injury suffered on the first series of the team's season-opening victory over the New York Jets last week. "We lost Ryan Sims for a minimum probably of six weeks, and it may be for the season, you never know," coach Dick Vermeil said. "And he was really having a great camp and preseason. He was playing extremely well when he went down early."