Ben Johnson isn’t sure yet how long Chicago Bears starters will play in the preseason finale Friday in Kansas City, but it’s unlikely to be for very long.

It will be interesting to see how many players at the top of the depth chart on defense are in action as injuries have started to pile up. Fortunately, most are not considered serious and many of the players could be back soon.

But for parts of Wednesday’s fully padded, 1-hour, 46-minute practice at Halas Hall, the first-team defense was down four starters. • Cornerback Jaylon Johnson has missed all of camp with a calf issue, and barring something unexpected, he should be back on the practice field in the near future. • Nickel cornerback Kyler Gordon, who suffered a hamstring injury Aug. 7, returned for the first time but participa

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