Mack, 27, had eight tackles last season in eight games for the Houston Texans.
For his career, he has 111 tackles and six interceptions.
The former Troy cornerback has a previous stint with the Tampa Bay Buccaneers.
As a senior at Troy, he led the nation with eight interceptions and was named a first-team All-Sun Belt selection.
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This story originally appeared on Nationalfootballpost.com
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