Chocky Davies will almost certainly fill one of the second row berths with Anth Carr favourite for the other - if his mate Carl is unfit.
Henry Tones will return in the back row,following his injury against Hull, while Stuart Bennett will have to undergo a fitness test after spending all week at the Cheltenham Festival with John Stabler.
There's also competition on the wings with a return to the first team squad for Dan Abrahams. Teenager Paul Miller has looked impressive since being given his chance and will almost certainly retain his place but could get a chance on his favoured left wing.
Both clubs are fielding strong sides - despite rumours to the contrary - but one big factor could be the weather. the forecast is for severe gales and driving rain!