Decker (knee) has been ruled out for Thursday night's game against the Packers, Ryan Wood of USA Today reports.
Decker (knee) did not practice Monday, Tim Twentyman of the Lions' official site reports.
Decker (knee) was a non-participant in Tuesday's walkthrough.
Decker (shoulder) has been ruled out for Sunday's game against Houston.
Decker (chest) didn't practice Wednesday, Colton Pouncy of The Athletic reports.
The Lions signed Decker to a three-year, $60 million contract extension Monday, Adam Schefter of ESPN reports.
Decker said Tuesday he underwent foot/ankle surgery this offseason and resumed working out mid-February, Justin Rogers of The Detroit News reports.
Decker (foot) was a full participant during minicamp, Nick Baumgardner of the Athletic reports.
Decker (foot) is not participating in OTAs while he deals with "residual effects from rehabbing all offseason," but he would be able to play right now if needed, Benjamin Raven of MLive.com
Decker (foot) was injured in the Lions' win over the Packers on Sunday.