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Denver Broncos quarterback Peyton Manning (18) stretches during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9281 )

Denver Broncos tight end Julius Thomas (80) stretches during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9243 )

Denver Broncos wide receiver Demaryius Thomas (88) smiles as he stretches during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9212 )

Denver Broncos outside linebacker Von Miller (58) runs through drills during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9527 )

Denver Broncos linebacker Lamin Barrow (57) and Denver Broncos outside linebacker Nate Irving (56) runs through drills during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9406 )

Denver Broncos punter Britton Colquitt (4) and Denver Broncos long snapper Aaron Brewer (46) wear the warm head gear during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9237 )

Denver Broncos outside linebacker Nate Irving (56) stretches during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9271 )

Denver Broncos outside linebacker Nate Irving (56) stretches during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9259 )

Denver Broncos cornerback Aqib Talib (21) sports the Peyton Manning socks during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9305 )

Denver Broncos quarterback Peyton Manning (18) stretches during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9207 )

Denver Broncos head coach John Fox looks on during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9294 )

Denver Broncos outside linebacker Corey Nelson (52) Denver Broncos outside linebacker Nate Irving (56) Denver Broncos outside linebacker Von Miller (58) head to drills during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9355 )

Denver Broncos outside linebacker Nate Irving (56) runs through drills during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9381 )

Denver Broncos defensive end DeMarcus Ware (94) smiles during practice September 11, 2014 at Dove Valley. (Photo by John Leyba/The Denver Post) ( SP12FBNBRONCOS_2JL9481 )