It was a pretty solid night overall for the Broncos but we do have a few players and positional groups who didn’t play all that well. After dominating the Cowboys during their joint practice on Thursday, the Denver Broncos continued that dominance by defeating them 17-7 in their preseason opener. The Broncos held them to a shutout until late in the game so, it was a pretty one-sided showing by the Broncos. There were plenty of standout players in this game who helped their chances of making the 53-man roster while others will need a bounce-back performance next week. So…