Wests Tigers winger Jordan Rankin says the support of the Leichhardt faithful will be crucial on Sunday in his side's must-win game against the Canberra Raiders.

After a dominant display himself with the boot in tough conditions at Mount Smart Stadium last week, Rankin said the confidence within the team was high heading into Sunday's game — especially knowing the support of the Leichhardt crowd is behind them.

"We played the Cowboys there a few weeks ago and the crowd was unbelievable," he said.

"I think there was a fair chance they got us over the line that day.

"It's a pretty hostile place to come and play footy and it seems to be a good ground for us as Wests Tigers to try and win games against quality opposition. 

"We're going to definitely need the support on Sunday to get over the line."

See what Jordan Rankin had to say about this week's game in full in the video above!

Don't miss our last home game of the year against the Raiders at Leichhardt Oval!