Acker had been moved down in the 49ers' first unofficial depth chart.

EDGE Analysis

Acker was listed behind Dontae Johnson (who he beat for a starting role last year) and rookie Rashard Robinson. This comes as bit of a surprise after he put up respectable numbers in 2015 (65 tackles and three picks). This was the first depth chart released, so things can definitely change between now and the start of the regular season, but for now it appears that Acker has fell out of favor with defensive coordinator Jim O'Neil.