Leigh Centurions coach Paul Rowley has a fully-fit squad as he looks to end a 10-year stretch since the club’s last play-off victory.
Rowley said: “We want to break a 10-year duck in which we’ve not won a single play-off game.
“The last play-off game we won was the 2004 Grand Final against Whitehaven – and that was so long ago that I played in it.
“But the current group here are new and fresh, and they don’t take much notice of that run. We’re carefree and daring.”
On Doncaster, Rowley added: “They’re a good team, there’s no question about that. They’ve been consistently good all year.”
Liam Colbon is the only dual-registered player likely to be available for Doncaster.
Cooke said: “We’re down to the bare bones, but that’s not a problem.
“We’ve given ourselves two bites of the cherry (by finishing fourth), and if we win this week then we get a week off.
“It’s all about the mindset the players want to take. I know which one I’m taking, and the rest of the guys can either follow me, or it could turn embarrassing because Leigh have been the Championship’s best team all year.”