straight to your inbox every day for freeChelsea are set to join Manchester United in the chase for RB Leipzig defender Dayot Upamecano, according to reports.M.E.N. Sport understands that United are planning on making four new signings in 2021 to finally complete their squad overhaul and, as well as a right-winger, right-back and defensive-midfielder, a new central defender is also on the list.