While the organisation’s juniors are celebrating their 50th anniversary, the BHP Billiton Hunter Valley Group 21 senior outfit will attempt to maintain its winning ways.

The Rams sit atop of the ladder, alone, after the Devils suffered a 20-10 loss to the Scone Thoroughbreds in round three.

So, Denman will be keen to bounce back at the expense of Muswellbrook, who held off a fast-finishing Singleton Greyhounds to keep its unbeaten record intact in 2017.

Both clubs will line-up in all four grades, with women’s league tag kicking off at 10.15.

The under-18s are scheduled to take the field from 11.20am, followed by the reserves at 12.35pm.

The main fixture starts at 2pm – and a big crowd is expected to witness the action.

In other matches on Sunday, the Aberdeen Tigers head to Scone to face the defending premiers, the Thoroughbreds.