Posted: 4/29/2017 11:04am ET
Huddle Up: Mack is a big play waiting to happen and can be flex all over the field. He brings a dynamic quality to the Colts' backfield that Frank Gore doesn't offer. There could be a sizeable role for this rookie given Gore's age and Mack's talents. Check him out in 2017 drafts as a fifth back or risky fourth.
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