However, Kenny Jackett's men came out fighting and a comprehensive 3-0 victory secured their status and Carlisle never really recovered. Twelve months on and the roles are now reversed and while The Lions will be looking for another three points to secure at least fourth place, their opponents know only a win will do to keep them up, and even that may not be enough.
And Millwall are in no mood to do them any favours.
"We go up to Carlisle wanting to win," manager Kenny Jackett told the Southwark News. "I know it is a difficult situation for them. They are in a relegation fight and need the points.
"You could think of Carlisle, but there is also Northampton and Brighton down there. We are looking after Millwall, that's all I'm about. I've got no allegiance to anybody down there and neither have the players."