According to ESPN's Josina Anderson, the deal is worth a max of $1.4 million with $250,000 guaranteed.
Siliga (6-foot-2, 325 pounds) spent the past three seasons with the New England Patriots. Last year, he played 23.2 percent of the defensive snaps and had 28 tackles. As a pass-rusher, Siliga has 5.5 sacks in 26 career games. This isn't the first time the Seahawks have shown interest in Siliga. They acquired him via trade in the summer of 2013, but Siliga did not make the 53-man roster coming out of training camp. He spent time on the practice squad before the Patriots signed him.
So where does the 26-year-old Siliga fit in with the Seahawks in 2016?
He will be in the mix to compete for the starting nose tackle job vacated by Brandon Mebane, who signed with the San Diego Chargers. One of the main goals in free agency is to fill holes so that teams are not drafting for need. The Seahawks now have a plan: let Siliga and Jordan Hill compete for the starting job.
And by the time August rolls around, they might not be the only options on the roster. Analysts agree that the draft class of defensive linemen is stacked this year. The Seahawks could very well end up with a starting-caliber nose tackle in late April. If that happens, Siliga offers depth.
As Bob Condotta of The Seattle Times points out, because Siliga was not tendered as a restricted free agent, he does not count in the equation for compensatory picks next season.
It's not the splashiest move. But it's a low-risk, inexpensive play for the Seahawks that should boost their defensive line depth and run defense.