in your words.
The only thing I've ever seen stop Kittle is when whoever calls the plays for the Niners... Shanny I'm sure or JG forget he's on the roster. If those two things do not happen Kittle gets open and catches every pass thrown to him no matter the opponent. He's second only to Kelce, IMHO, but only by a gnats ass.
BUT... liked your question about Ertz...and I don't know. I'm too emotional to really analyze Ram's games and especially games like last night. - JamesJM