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Saturday, September 18, 2010
Tyson Jackson won't play Sunday

By Bill Williamson

The Kansas City Chiefs ruled out defensive end Tyson Jackson of playing Sunday in Cleveland. Jackson has a knee injury he suffered in the Chiefs’ win over San Diego on Monday night.

Jackson was listed as questionable Friday but he was downgraded Saturday. Perhaps with a solid week of progress Jackson will be ready to play in Week 3 against San Francisco.

Jackson was the No. 3 overall pick in 2009.After a disappointing rookie season, Jackson played well in the win over the Chargers. Right tackle Ryan O’Callaghan was also ruled out of the Cleveland game on Saturday. He has a groin injury.