For pitch work at the club’s home, The Shay, has meant today’s game has been switched to neighbouring Keighley Cougars’ ground, Cougar Park.
Halifax have put on free coaches to get fans to the match, and Steele is hoping the town will come out and support the club.
Halifax and London are both locked on 22 points from their 18 games so far, the same points as Featherstone Rovers who have a game in hand.
With Leigh Centurions, Bradford Bulls and Sheffield Eagles looking likely to finish in the top three, it means there is one final place for the coveted Super 8s – when the bottom four Super League clubs are grouped with the top four Championship clubs for an end-of-season competition – up for grabs.
Steele said: “It’s an old saying in rugby league but, on Saturday, we need an 18th man. The support in our away games has been phenomenal but Saturday is a massive day for everyone involved.”
Halifax had a 46-16 win at Dewsbury Rams last week which pleased coach Richard Marshall.
“We did well last week, I thought were class on the day,” he said.
“The game on Saturday is important in terms of where we’re going to finish and where London will finish.
“We’re in form and London are as well.
“Ever since they beat Leigh a couple of weeks ago, they’ve kicked on. But we have as well; we’ve won four away games on the bounce. Although on paper we’ve playing at home on Saturday, we’re actually playing at Keighley, so we’re away again really!”
Centre Stephen Tyrer is a doubt with a hand injury but prop Adam Robinson returns to the squad.