Match Preview ahead of Manchester United's FA Cup 4th Round Replay against Cambridge United. br br Subscribe, FREE, for more MUFC: br About FullTimeDEVILS:br We are YouTube's largest football fan channel, made for Manchester United fans and bringing you big match previews, post-match reaction and reviews, tactical analysis, player debates and much more! If you're a red, we want you to get involved; whatever you want to say about United you can say it in the comments below.