Who are the Top 5 defenders out there that Manchester United should try to sign? Ian Smith runs through the list, any others you think should be in there? Get them in the comments below!br br Subscribe, FREE, for more MUFC: Subscribe to The Football Republic: 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.