McCoy is week to week with a left ankle injury, the St. Petersburg Times reported, while Blount is day to day with a left knee injury.
"Right now, I'm not real motivated to say (McCoy's) going to definitely play this week," Morris said Monday, via the Times. "But I'm not ready to count him out, either.
"I don't want to rule (Blount) out, but I'm not looking at him. It is what it is. Next man up. I'd like to get more detailed information on him. I'll call him day to day."
If Blount is unable to play Sunday, expect running back Earnest Graham to get the majority of the carries with Kregg Lumpkin and Allen Bradford sharing the rest.