Matthew Stafford's wife just shared some sad news ... their beloved dog, Marley, passed away on Monday -- and the family is completely devastated.
The L.A. Rams quarterback and his wife got Marley right when Stafford was drafted into the NFL ... and Kelly says she "immediately filled Matthew’s side of the bed."
"I woke up this morning without a face in front of me that I’ve been used to waking up to for the past 13 years," Kelly said.
Kelly noted Marley was their "first baby" before the married couple had four daughters together -- in fact, Marley helped announce one of those pregnancies by holding a sign "Mom's pregnant" back in 2016.