Dolphins' Zach Vigil: Placed on reserve/NFI list

Vigil (back) was placed on the Dolphins' reserve/NFI list Tuesday.

Vigil has been dealing with a nagging back injury and will now be sidelined for the first six weeks of the regular season. When healthy, he'll likely return to a special teams role in which he recorded 18 tackles and a blocked punt across 16 games during the 2015 campaign.