Simmons was waived by the Bills on Sunday.
Simmons (undisclosed) was placed on the reserve/COVID-19 list Thursday.
Simmons (calf) will play in Sunday's game versus the Giants, Joe Fann of NBC Sports Northwest reports.
Simmons (calf) is inactive for Monday's game versus the Eagles.
Simmons (calf) won't play in Thursday's game versus the Cardinals, Curtis Crabtree of Sports Radio 950 KJR Seattle reports.
Simmons (calf) wasn't listed on the injury report Monday, Curtis Crabtree of Sports Radio 950 KJR Seattle reports.
Coach Pete Carroll said Sunday that Simmons is dealing with calf tightness, Bob Condotta of The Seattle Times reports.
Simmons (knee) signed a contract with the Seahawks on Wednesday.
Simmons (knee) was placed on injured reserve Saturday, per the league's official transactions report.
Coach Pete Carroll said Wednesday that Simmons (knee) is likely to miss the first three to four weeks of the regular season, Gregg Bell of The Tacoma News Tribune reports.