Plummer sidelined by foot injury
Plummer, who missed last week's game against Pittsburgh with a shoulder injury, injured the foot against Kansas City a week earlier.
The Broncos medical staff believes Plummer likely suffered a stress reaction in his foot that didn't show up on X-rays, then broke the foot at his home Monday night.
"He fractured his left third metatarsal," Broncos trainer Steve Antonopulos said Wednesday. "We X-rayed it right away in Kansas City, and nothing showed up. We treated it the majority of last week, and he actually ran on Monday.
"Then on Monday night, while getting up from watching television, he felt a pinch, tweak, pop -- whatever you want to call it."
Plummer underwent more treatment Tuesday for what was believed to be a strained ligament. But Wednesday, an X-ray showed a clean break in the middle of the foot.
Asked the timetable for Plummer's recovery, Antonopulos said, "The doctors say about four weeks."
Added Plummer, "At least it's not a season-ending injury."
Veteran Steve Beuerlein, who played in Plummer's absence against Pittsburgh, now will get more extended work.
The Broncos (5-1) play at Minnesota and Baltimore before returning home for a Monday night game against New England the next three weeks, then have a bye.
"I'm still shocked," Plummer said. "It's weird. I didn't think there was anything wrong with my foot. It was sore after the Kansas City game, but my mind was more on my shoulder."
Plummer said he felt "a little pop" when he got up off his couch on Monday night.
"I thought it was just a strain," he said. "It's kind of a freak deal. But if it happened, it happened for a reason. Maybe it's to get my shoulder back healthy so when I do come back in a few weeks, I will have no excuses."
Plummer will wear a boot cast for the next week, then will begin some rehabilitation and conditioning exercises.
This story is from ESPN.com's automated news wire. Wire index
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