Will Shanahan choose Allen or Dobbs as 49ers’ backup QB?

SANTA CLARA — Kyle Shanahan has his own ideas and may have already made up his mind.

That was the case a year ago when the 49ers’ coach named Sam Darnold as his backup quarterback over Trey Lance two days before they played their final exhibition game against the Los Angeles Chargers.

But there were no clues after Sunday night’s win over the Saints as to whether Brandon Allen or Joshua Dobbs would be the choice to be next man up on Sept. 9 when the 49ers host the New York Jets on Monday Night Football.