Procter was stretchered off and taken to hospital with a knee injury after a 66th minute tackle from Charlton's Chris Solly,
"If there is someone out there who is of similar ilk that I can get in, then I will, But that is a hard ask with four or five days left." Warne told the Star.
"He is going to be a hard player to replace, He has been excellent for us. I am hopeful of good news, but I am also aware that I don't think it will be."