WOODLAND HILLS, Calif. – Rams head coach Sean McVay on Monday said inside linebacker Omar Speights will be likely be "doubtful" for Sunday's game against the Ravens after sustaining a high ankle sprain in last week's game against the 49ers.

McVay said they are still working through who would replace Speights if he ends up being unavailable for Week 6, but also haven't explored that extensively yet.

"Got a lot of confidence in Troy (Reeder), you got a lot of confidence in some of the different guys, obviously (Shaun) Dolac," McVay said. "We only have four guys on the roster, but Troy is a guy that's shown that he's more than capable of (that), as is Shaun Dolac, and we got guys on the practice squad, but haven't gotten too far deep into that quite yet."

Additionally, tight end Colby Parkinson is in the concussion protocol, but McVay expects him to be available.

"Colby Parkinson will be in concussion protocol (for) when he hit his head on the corner route in the red zone," McVay said. "(He's) making good progress, do expect him to be available. He's doing good, but he is in the protocol."

As for tight end Tyler Higbee (hip) and offensive lineman Rob Havenstein (ankle), McVay said both of them are "making good progress," but updates on their statuses will come Wednesday.

The Rams take on the Ravens at M&T Bank Stadium in Baltimore Sunday at 10 a.m. pacific time on FOX.