It is from this article. Here is the context:
Fury beat Wladimir Klitschko in November 2015 to become the lineal champion and remains undefeated after 27 fights, while Wilder has won all 40 of his fights - 39 by knockout. "It's a dare to be great move," Fury added. "Two fights, 10 fights - it doesn't really matter. I can't lose this fight.
What does he mean by great move and why an article is omitted before the phrase?