This is the first reported interest in Acker since the free agent market officially opened.
Acker, 26, is a former sixth-round pick of the 49ers back in 2014. San Francisco traded him to the Chiefs at the start of the 2016 season for a 2018 seventh-round pick.
Acker played out the final year of his four-year, $2.340 million rookie contract and is currently testing the open market as an unrestricted free agent for the first time in his NFL career.
In 2017, Acker appeared in all 16 games for the Chiefs and recorded 23 tackles, one interception and a pass defense.