On Saturday they will face a Castleford side considered to be the surprise success story of this season’s Super League.
Daryl Powell’s Tigers, who finished 11th last time out, are guaranteed a top-six finish and are in their first Challenge Cup final since 1992.
England international Burrow has credited the Tigers’ improvement to their togetherness.
“I think they are playing as a team and Daryl has made them a really closely-knit bunch,” he said.
“It’s not about buying a team, I don’t think that works in rugby. I think it’s the camaraderie and togetherness of the players because when you enjoy being together I think you tend to find the performances mirror that.
“Daryl has done a fantastic job and obviously the boys are really happy playing under him there.”