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Denver Broncos tight end A.J. Derby #83 and Denver Broncos defensive end DeMarcus Walker #57 at Dove Valley Aug. 03, 2017.

Denver Broncos cornerback Aqib Talib #21 not dressed for practice at Dove Valley Aug. 03, 2017.

Denver Broncos head coach Vance Joseph gives a little direction to Denver Broncos cornerback Chris Harris #25 at Dove Valley Aug. 03, 2017.

Denver Broncos outside linebacker Von Miller #58 clears a tackle dummy at Dove Valley Aug. 03, 2017.

Denver Broncos outside linebacker Von Miller #58 at Dove Valley Aug. 03, 2017.

Denver Broncos defensive end DeMarcus Walker #57 hits the sled at Dove Valley Aug. 03, 2017.

Denver Broncos running back Jamaal Charles #28 runs through an apparatus at Dove Valley Aug. 03, 2017.

Denver Broncos running back Juwan Thompson #40 runs through an apparatus at Dove Valley Aug. 03, 2017.

Denver Broncos wide receiver Isaiah McKenzie #84 at Dove Valley Aug. 03, 2017.

Denver Broncos wide receivers Isaiah McKenzie #84, Hunter Sharp #17, Marlon Brown #15, Cody Latimer #14, and Emmanuel Sanders #10 wait for action at Dove Valley Aug. 03, 2017.

Denver Broncos tight end Austin Traylor #86 makes a catch during drills at Dove Valley Aug. 03, 2017.

Denver Broncos wide receiver Isaiah McKenzie #84 makes a catch at Dove Valley Aug. 03, 2017.

Denver Broncos wide receiver Hunter Sharp #17 at Dove Valley Aug. 03, 2017.

Denver Broncos quarterback Trevor Siemian #13 puts his cleats back on at the beginning of practice at Dove Valley Aug. 03, 2017.

Denver Broncos wide receiver Isaiah McKenzie #84 makes a cut during drill at Dove Valley Aug. 03, 2017.

Denver Broncos wide receiver Emmanuel Sanders #10, left, look back at rookie Denver Broncos wide receiver Isaiah McKenzie #84 while taking the field at Dove Valley Aug. 03, 2017.

Denver Broncos quarterback Trevor Siemian (13) throws under the watch of offensive assistant/quarterbacks coach Klint Kubiak at Dove Valley on Aug. 3, 2017.

Denver Broncos quarterback Paxton Lynch #12 at Dove Valley Aug. 03, 2017.

Denver Broncos quarterback Trevor Siemian #13 is all smiles taking the field for training camp at Dove Valley Aug. 03, 2017.

ENGLEWOOD, CO - AUGUST 03: Denver Broncos grounds crew members empty 5-gallon buckets of water into a small front-loader where the fan hill and the practice fields meet at Dove Valley after a heavy overnight rainstorm drenched the field August 03, 2017. (Photo by Andy Cross/The Denver Post)

A Denver Broncos grounds crew member pulls a gas powered dryer to help dry off the practice fields at Dove Valley after a heavy overnight rainstorm drenched the field Aug. 03, 2017.

Denver Broncos quarterback Paxton Lynch #12 during warm-up drills with quarterback Trevor Siemian #13 at Dove Valley Aug. 3, 2017.

Roger Goodell speaks at a fan forum at the Broncos' headquarters with, from left, Dave Logan, John Elway and Steve Atwater.

NFL commissioner Roger Goodell, left, has a laugh with Denver Broncos head coach Vance Joseph at Dove Valley Aug. 03, 2017.