BookMaker.eu has opened odds for some of the most highly-anticipated quarterback battles in the NFL ranks: 

NFL Quarterback Battles

Chicago Bears starting quarterback Week 1 of 2017-18 NFL regular season

Mike Glennon -1200
Mitch Trubisky +700

Denver Broncos starting quarterback Week 1 of 2017-18 NFL regular season

Trevor Siemian -360
Paxton Lynch +270

Cleveland Browns starting quarterback Week 1 of 2017-18 NFL regular season

Brock Osweiler +155
Cody Kessler +200
DeShone Kizer +205

New York Jets starting quarterback Week 1 of 2017-18 NFL regular season

Josh McCown -105
Christian Hackenberg +105
Bryce Petty +1800

Houston Texans starting quarterback Week 1 of 2017-18 NFL regular season

Tom Savage -320
Deshaun Watson +280
Brandon Weeden +4000

(note: Savage opened -210, Watson +220, Weeden +1500)