Postpublished at 87 mins
Swansea 0-4 Man Utd
If you do not hear from me in the final three minutes, it is because my fingers have stopped working.
That three goal spurt from Manchester United came in three minutes and 41 seconds.
Man Utd have won both Premier League games 4-0
Swansea have yet to score this season
Sub Martial with shot into bottom corner
Pogba with precise lofted finish
Unmarked Lukaku from eight yards
Pogba header tipped onto bar - Bailly slots home
Get involved - #bbcfootball
Shamoon Hafez
Swansea 0-4 Man Utd
If you do not hear from me in the final three minutes, it is because my fingers have stopped working.
That three goal spurt from Manchester United came in three minutes and 41 seconds.
#bbcfootball
Henry: 3 goals as easy as they come, Swansea back four at absolute sixes and sevens. Jose looks angry. Typical Man Utd. Ruthless.
Nick Wagstaff: 80 minutes was a good effort, to keep it tight, against this Utd team
Scott: United are back
Swansea 0-4 Man Utd
John Hartson
Ex-Celtic and Wales striker on BBC Radio 5 live
Swansea are gone.
They are trying to get forward and they can't get back to defend.
4-0...what can you say? It's flattering in terms of how the game has gone, but what a result.
Anthony Martial
Raining goals at the Liberty, United bag four again.
Goalscorer to creator, Paul Pogba slots a pass to Anthony Martial.
The United sub runs to the edge of the box unchallenged, looks up and rolls the ball into the net from eight yards out.
Frenchman to Frenchman, bang, goal.
Paul Pogba
Two goals in two minutes.
Again, Henrikh Mkhitaryan is the architect, finding space down the right.
He puts the ball into the box for the onrushing Paul Pogba, who gently chips the ball home.
Cool as you like and an £89m finish from the Frenchman.
Romelu Lukaku
One chance, one goal. Game over.
I said three minutes ago he has not had a sniff, but Romelu Lukaku gets an opportunity and tucks it home.
The big Belgian is found in the box by Henrikh Mkhitaryan and finishes with ease past Lukasz Fabianski.
Swansea 0-1 Man Utd
The Swansea fans trying to rouse their troops for the final 12 minutes.
"Paul Clement's barmy army," they sing.
Swansea 0-1 Man Utd
Romelu Lukaku has not had a sniff today.
Swansea 0-1 Man Utd
Phil Jones rushed into a clearance by Tammy Abraham as Swansea look to build pressure again.
Can they nick one late on?
#bbcfootball
Vaishach: So Fer should have been off then
Dharma Djojonegoro: Leroy Fer should have gotten 2 red cards so far...
Swansea 0-1 Man Utd
Changes for United.
Marcus Rashford, roundly booed, and Juan Mata make way for Marouane Fellaini and Anthony Martial.
Swansea 0-1 Man Utd
Paul Pogba smacks his free-kick narrowly over.
Close.
Swansea 0-1 Man Utd
Paul Pogba is over the free kick...
Swansea 0-1 Man Utd
Daley Blind smacks a first time drive over from 25 yards out.
On the follow up, Leroy Fer catches the left-back and gets booked.
Swansea 0-1 Man Utd
Tom Carroll swings in nicely shaped corner, which comes off Nemanja Matic for another...
...and the next one should be in the back of the net, but two Swansea players both miss their kicks from six yards out.
Jordan Ayew and Tammy Abraham are the guilty duo.
Swansea 0-1 Man Utd
Swansea are not out of this and just need a ball to drop nicely to them inside the area.
Maybe it will from this corner...
#bbcfootball
David P H Thomas: Swans miss Siggi so much already, they must invest fast or face the same struggle as last year
Swansea 0-1 Man Utd
Henrikh Mkhitaryan screws an effort wide from 20 yards, which almost ends up at the corner flag.
Swansea 0-1 Man Utd
A couple of subs for Swansea.
Luciano Narsingh and Wayne Routledge enter the action, Kyle Bartley and Roque Mesa exit.
Swansea 0-1 Man Utd
Oooh. Jordan Ayew flashes a brilliant ball across the six-yard box, but Tammy Abraham cannot get on the end of it.
The Swansea man just nudged out there by Phil Jones.