Mourinho thrilled as Sanchez flourishes
Yeovil Town 0 Man Utd 4
Debutant Alexis Sanchez helped steer Manchester United into the FA Cup fifth round with two assists as Jose Mourinho's men strolled past Yeovil 4-0.
The Chile forward laid on goals for Marcus Rashford and Ander Herrera, with Jesse Lingard and Romelu Lukaku glossing the score late on at Huish Park.
Sanchez's former club Arsenal spent the day assuming responsibility for the 29-year-old inadvertently missing a drugs test on Monday, as he dealt with the logistics of his United transfer.
The striker himself ended the night by ensuring manager Mourinho tasted victory on his 55th birthday and the occasion of his 100th match at the United helm.
"These matches are difficult if the attitude is not correct," said the United boss. "In the first half they gave us a difficult time, pressing and aggressive on the ball and on the shinpads. I could hear Darren Way on the touchline, he knew what he was saying, they were organised.
"But in the second half we had control, more space and more quality, we killed the game.
"Alexis is a fantastic addition, everyone is happy that he came. 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 Rashford is too nervous to make."
Sanchez dropped deep too often and conceded possession cheaply too frequently in a mixed first half, but still posed United's chief threat.
That spark generated the wholly-dominant visitors' first two goals.
Sanchez may have to answer questions from UK Anti-Doping over Monday's missed drugs test, but is already offering the answers for his new club.
The Red Devils coasted through a low-key first half, where Yeovil missed two solid chances.
First Jordan Green had a shot rebuffed after sneaking through on the inside left, before the unmarked Omar Sowunmi headed straight at Sergio Romero from a free-kick.
Eventually the visitors found something approaching fluency, with Herrera losing the ball cheaply in the Yeovil box.
Sanchez threaded a fine ball to Scott McTominay, but the young midfielder saw his low effort turned around the post by Artur Krysiak.
When United finally did move in front, the Red Devils pounced on Thomas James' misstep.
The defender thought he was free to clear after the ball escaped Rashford in the Yeovil box. The England forward had not given up the ghost however, and nipped in before dinking over the onrushing Krysiak.
Sanchez had fed Rashford in a smart pass in the build-up to the opener, finally conjuring an incisive ball after a sequence of misplaced passes.
United killed the game on the hour with a clinical break, Juan Mata feeding Sanchez and the Chile forward playing in Herrera, who fired home.
Mata had the ball in the net just minutes later, but the tap-in was ruled out for offside.
United were already home and hosed by the time substitute Lingard raced through and drilled in the third.
Fellow sub Lukaku tapped the fourth into an empty net, as United finished off in style.