Monday, Buffalo Bills running back Anthony Dixon left practice with a calf injury. A day later, he tweeted the injury was a "minor setback."
Wednesday, coach Rex Ryan provided some further details on the backup ball carrier, telling the Associated Press that Dixon could be absent from the field for up to a month.
Ryan called Dixon's type of ailment "usually tricky," the main reason why he was nonspecific on the exact length he'd be out.
Dixon, along with Bryce Brown, shouldered much of the load for the Buffalo ground game last season when both Fred Jackson and C.J. Spiller went down with injuries. He finished second on the team in rushing yards (432) and first in yards per carry (4.1).
He'll be fighting for the No. 2 spot this summer against veteran Fred Jackson, with LeSean McCoy expected to be the team's starter.
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