The Broncos say they have not made a decision on their starting quarterback for Sunday’s game against the Chargers. They say Brandon Allen and Drew Lock will both take practice reps, but the latter will get the majority of them — “three-quarters,” coach Vic Fangio said — and the coaching staff will make the call late in the week.



It could be Friday. It could be as late as Saturday.



“Ultimately, it’s going to be what gives us the best chance to try to win this football game,” general manager John Elway said during a local radio interview.



The Broncos are sending mixed messages about their quarterback plans and, in doing so, are putting their entire locker room in an unfair position.



Elway and Fangio have said they want to make sure Lock, their rookie second-round pick who has been on injured reserve, is physically and emotionally prepared to lead the offense. Yet Fangio said Monday that Lock is indeed...