The Dolphins needed some linebacker depth, and Jake Knott needed another chance.
According to Omar Kelly of the South Florida Sun-Sentinel, the Dolphins signed the former Eagles linebacker to address an injury depleted position.
Knott spent the last two seasons with Philadelphia, but had to serve a four-game suspension for testing positive for a banned substance. At the end of that, he re-signed with the Eagles practice squad, but was released with an injury settlement in October.
The Dolphins have a collection of injured linebackers, with Jonathan Freeny, Chris McCain, Koa Misi and Jelani Jenkins all dealing with various aches.