After staying healthy for most of the past two seasons, Will Dissly will see another injury likely end his season. The Seahawks placed the veteran tight end on IR due to a knee injury.

Dissly, who suffered major injuries during his first two NFL seasons, went down against the Chiefs on Saturday with what Pete Carroll is calling a contusion. More tests appear on tap, however. Unless the Seahawks make an unlikely voyage to the NFC championship game, Dissly will be ineligible to return this season.

Although his season is likely wrapped after 15 games, Dissly both displayed durability (15 games played) and provided considerable aid to Geno Smith‘s unexpected Pro Bowl campaign. Dissly established new career-high marks in receptions (34) and receiving yards (349), adding three touchdowns. Valued for his run-blocking ability, Dissly (60% snap rate) also played a prominent role in Ken Walker‘s rookie-year emergence.

The Seahawks re-signed Dissly on a somewhat surprising three-year, $24MM pact in March. Dissly was uncertain as to what his market would bring, but Denver and Tampa Bay also showed interest in adding him. Instead, Dissly teamed with ex-Broncos tight end Noah Fant to help Seattle’s cause post-Russell Wilson.

Dissly’s deal includes $10.3MM fully guaranteed but nearly $6MM more in injury guarantees, so it will be interesting to see if his latest setback is a significant one. The University of Washington product went down with a torn patella tendon in 2018 and was lost for much of the 2019 season after an Achilles tear. Dissly rebounded to make his way toward that nice contract in the ensuing two seasons, playing in 31 of a possible 33 games.

In addition to the Dissly transaction, the Seahawks claimed defensive lineman Isaiah Mack off waivers from the Ravens. A fourth-year former UDFA, Mack spent the past two seasons with Baltimore. Seattle also signed cornerback Xavier Crawford off its practice squad, waived D-tackle Daviyon Nixon and added corner Steven Parker to its taxi squad.