when leveling in dungeon world, if you choose a move that has a “replaces: XXX” do you need to have the XXX move?

when leveling in dungeon world, if you choose a move that has a “replaces: XXX” do you need to have the XXX move?

for example a thief wants to take the move “Dirty Fighter”. It states “replaces: cheap shot”. Does the thief need to have taken “Cheap Shot” or can he just choose “Dirty Fighter”?