The result leaves Munster in fourth place in the standings, meaning they will have to beat the Cardiff Blues away in two weeks' time and hope that other sides slip up in order to reach the semi-finals.
Nottingham must now win away at the Exeter Chiefs next weekend in order to stand any chance of progressing to the semi-final stage of the Championship play-offs, and Delaney recognises that most people will now write his side's hopes off.