However, Demetriou has demanded a major improvement from his side after last week’s 36-14 defeat at Oldham.
Demetriou said: “When we turn up with the right attitude we’re in with a good chance, but it only takes three or four blokes not to have that attitude and it can cost you.
“This is a massive game against Doncaster. We’re chasing home play-off games, so every match is vital now.
“We’ve only got two home games left and we want to finish them in style. It makes a big difference to us when we are at home, and we’re hoping for another big crowd to really get behind us.”
But coach Tony Miller did receive a boost when Craig Fawcett returned to training earlier this week.
Miller said: “Our destiny is in our own hands and you can’t ask for anything more than that at this stage of the season.”