Broncos announce Mark Sanchez will start preseason opener

Mark Sanchez is the Broncos’ starting quarterback. At least this week. Broncos coach Gary Kubiak announced today that Sanchez will start the team’s preseason opener on Thursday night. Kubiak plans to let Sanchez play a quarter, let Trevor Siemian play the second quarter and give first-round draft pick Paxton Lynch the full second half. Kubiak…