Coach Pete Carroll said at the time that Sherman was expected to be ready for the lineup in time for training camp.
According to a 2017 report by ESPN's Todd Archer, Sherman is a pending free agent. Seattle cutting Sherman shouldn't be such a big surprise since he is coming off a major injury and set to make $13.2 million in 2018.
Even if the argument can be made his effective level of play wasn't the same last season, Richard Sherman has caused all sorts of problems for the Los Angeles Rams over the years since they get to face the cornerback and the Seattle Seahawks twice a year.
Sherman also suffered the first significant injury of his career last season, tearing his right Achilles against Arizona on November 9 and ending his season, snapping a streak of 99 consecutive starts.
The Seahawks have undergone significant personnel re-shuffling after finishing 9-7 and missing the playoffs for the first time since 2011.
Sherman, who turns 30 later this month and is owed $11.5 million this season, ruptured his Achilles in Week 10, snapping a streak of 116 consecutive games to begin his career and casting his Seahawks future in doubt.
Sherman has been linked to the Patriots in recent years.