The Chiefs activated McDonald (knee) from injured reserve Saturday.
The Chiefs placed Smith (hamstring) on injured reserve Saturday.
Sneed (knee) did not fly to Seattle with the Chiefs due to personal reasons but remains questionable for Sunday night's contest.
The Chiefs signed Ott from the practice squad to the active roster Saturday.
The Chiefs elevated Watson from the practice squad to the active roster Saturday.
The Chiefs signed Armstrong from the practice squad to the active roster Friday, Aaron Wilson of KPRC 2 Houston reports.
Sneed (knee) is questionable for Sunday's game against the Seahawks.
Smith (hamstring) has been ruled out for Sunday's game against the Seahawks.
Worthy will once again operate as the Chiefs' top wide receiver after Rashee Rice (hamstring/knee) was ruled out ahead of Sunday's game against the Seahawks, Pete Sweeney of The Kansas City Star reports.
Kelce (ankle) doesn't have an injury designation for Sunday's game against the Seahawks.
