Kenneth Acker‘s time with the Colts was short-lived. One month after signing with Indianapolis, Acker has been released, according to a press release. To fill his spot on the roster, the Colts signed undrafted rookie safety Michael Cirino. 
The Colts signed Acker for depth following the departure of Rashaan Melvin. Acker was never in line for a starting job, but he seemed like he could have offered support from the bench along with the returning Pierre Desir. Apparently, Acker didn’t cut it on the practice field.
Acker has played in 40 career games, including 15 starts, over the course of his four-year NFL career with the Chiefs (2016-17) and 49ers (2014-15). The Seahawks also showed some interest in him before he landed in Indy.
Cirino totaled 55 tackles, two tackles for loss, 13 passes defensed, three interceptions, and three forced fumbles in two years at Division II Adams State.