Wigan's top-four hopes rest on Castleford beating Hull as Joel Tomkins is not hopeful Salford will beat St Helens.
If Salford can cause an upset against Saints, Wigan will have something to play for heading into the clash with Wakefield on Saturday.
However, Tomkins believes Saints will win and is more optimistic of Castleford beating Hull, even though they look set to rest a host of players.
“It’s a weird feeling because not often in sport you’re reliant on others, you usually have a bearing on the outcome; we may go into Saturday’s game having no chance of making the top four, and it’s a tough one to take," Tomkins said.
“The odds are stacked against us, but we’ll keep our fingers crossed and hopefully we’ll still have something to play for.
“I can’t see Salford getting the result – I fancy Saints in that one. But it’d be nice if Hull don’t get the win.
“Cas have been outstanding this year and I know they’re resting a few – which they’ve earned the right to do – but you wouldn’t write them off at home against anyone, no matter what team they’ve gone out.”