Oldham currently lead Kingstone Press Championship One by two points, but have played two games more than second-placed Crusaders.
Victory on Sunday would give Oldham more breathing space at the top of the table, and their chances have been boosted by the news that Jason Boults, Liam Gilchrist and Matthew Haggerty are all fully fit.
Crusaders’ only absentee is Owain Brown (personal reasons) as coach Clive Griffiths urges his squad to enjoy the last few weeks of the season.
Griffiths said: “We’re in another massive game and the winner will be in the box seat. That’s why you play the game – to test yourself. We need to enjoy it.
“There shouldn’t be a hangover from last week. We’ve had a couple of days to reflect and it’s now business as usual.
“And we’ll certainly pay Oldham the respect they deserve. They’re top of the league and favourites to win it – they always have been.”