Curry and Underhill, who England coach Eddie Jones has dubbed "The Kamikaze Kids", have been standouts in England's strong forward pack at the World Cup.
They got the better of Michael Hooper and the world class David Pocock in their quarter-final in Oita on Saturday to advance to the semi-finals for the first time in 12 years and face the All Blacks in Yokohama.
"Underhill and Curry have been pretty impressive," Cane said. "They've both got a huge appetite for hard work and have very good skill sets. They have been really impressive."