Jags’ Henderson may finally miss a game

Jaguars defensive tackle John Henderson missed his third consecutive practice Friday and was listed as doubtful for Sunday’s game at Denver. Henderson, a two-time Pro Bowler who has not missed a game in his six-year career, suffered a concussion last week against Atlanta. He returned to the game later, then had to be helped to the locker room with what team officials called “heat-related issues.”…