Sanchez was named in the starting line-up just days after he signed for United from Arsenal and was involved in the build-up to the first two goals, scored by Marcus Rashford and Ander Herrera.Substitutes Jesse Lingard and Romelu Lukaku added late gloss to the scoreline as United ran out comfortable winners against their fourth-tier opponents.”Alexis Sanchez is a fantastic addition, everyone is happy that he comes,” said a delighted Mourinho. “Good players want good players. The question is always which one is going to be left out, it is not about that for us.”We have a fantastic group of attacking players and he is another one with more maturity and experience. His choice for the second goal is a choice that a player like Marcus Rashford is too nervous to make that kind of decision. He brings maturity and class.”Fresh from signing a contract extension with United, Mourinho put out a much-changed side for the fourth-round clash in his 100th competitive match in charge but the visitors still had far too much firepower for Yeovil.Sanchez lined up alongside Michael Carrick at Huish Park, with the veteran midfielder making his first start since September after he received treatment for an irregular…