Full-time: Manchester United 2-0 Southampton
- A goal in each half from Zlatan Ibrahimovic gives Jose Mourinho a victory in his first competitive home match since succeeding Louis van Gaal in May
- £89m midfielder Paul Pogba plays the full 90 minutes of his second debut after serving a one-match suspension carried over from last season
- Ibrahimovic has now scored four goals in his first three appearances for Manchester United
- Having already powered home Wayne Rooney's cross with a bullet header, the confident Swede notched his second from the penalty spot after Luke Shaw was tripped by Jordy Clasie
- Southampton lost Oriol Romeu to injury after just 10 minutes at Old Trafford
That is all for this particular live text, but stay tuned to IBTimes UK for post-match reaction and the latest from the Rio Olympics.
We will also be back tomorrow to bring you live coverage of a host of games including Tottenham vs Crystal Palace, Watford vs Chelsea, Burnley vs Liverpool and Leicester vs Arsenal.
Goodbye for now.
A comfortable win for United to maintain their 100% start to Mourinho's tenure. The manager will be delighted with Ibrahimovic, while Pogba really grew into the game after that shocking first touch.
The early signs look very positive at Old Trafford. Next up is a trip to newly-promoted Hull City and the small matter of the first Manchester derby of the season against Pep Guardiola's City.
As for Southampton, they host Sunderland next Saturday. It certainly wasn't all doom and gloom for the Saints tonight, but Puel will be acutely aware that their final ball/finishing has to improve.
Manchester United 2-0 Southampton
Mkhitaryan has looked sharp since coming on. He tees up Pogba after a useful decoy run from Ibrahimovic, but the shot whistles wide of Forster's left-hand post.
That should be that.
After something of a hairy moment for De Gea, the fourth official signals three minutes of added time. Can toothless Southampton salvage even a consolation goal?
A spot of late showboating from Pogba is well received by the home crowd. So much for the £89m man not being able to last 90 minutes.
Redmond exchanges passes with Targett and Tadic attempts to wrap a first-time shot around Daley Blind and into the bottom corner. The ball sails wide.
A final throw of the dice from Puel. Jay Rodriguez replaces Long, who does not look at all happy with the decision. It's been a frustrating night for the affable Irishman.
Mourinho withdraws Martial in favour of Herrera. Pogba may well last the distance here. No obvious lack of fitness on his part.
Southampton win a free-kick in the United half, from which Van Dijk can only head well over. No lack of effort from the Saints here, but a comeback looks beyond them.
A difficult half-chance for Long from Cedric's cross as he tries to guide a near-post header on target but can only send it wide.
Mourino makes his first substitution with 15 minutes to go. Mata makes way for Mkhitaryan.
A second change from Puel sees Austin replace Davis.
Valencia then skips past Targett in style before standing the ball up for Ibrahimovic at the back post. He mistimes his header this time, however, and Rooney is flagged for offside as he attempts to turn in the loose ball.
Martial utilises his considerable pace to leave Fonte behind and advance into the Southampton box. Only a crucial late block Van Dijk stops him from extending United's lead even further.
He is then set up nicely by Ibrahimovic but the ball just runs away from him. Mourinho's side have looked every inch the title contenders during the last few minutes at Old Trafford.
United win a corner that Mata guides towards Pogba. The Frenchman beats Hojbjerg in the air but his header flies over the crossbar. How he would love to notch a debut goal here.
After an error from Ibrahimovic, Van Dijk burrows to the byline and manages to pull the ball back for Redmond. He tees up Clasie in space, but the Dutch midfielder's strike is wild and hurtles into the crowd.
30 minutes left for Southampton to try and get back into this game.
Southampton look to reduce the deficit, but Fonte cannot quite make contact with a header in the box and Redmond is unable to make his effort count at the back post.
Clumsy from Clasie as a trip on Shaw leads to referee Taylor pointing to the spot. Ibrahimovic then steps up to confidently dispatch his penalty into the bottom corner of the net.
Four goals and counting for the serial title winner. Southampton have a mountain to climb now.
Goal: Manchester United 2-0 Southampton (Zlatan Ibrahimovic)
Anthony Martial has not been overly involved in this game so far but he cuts inside Cedric and fires a warning shot that is saved by Forster.
Southampton probe patiently under little pressure and an incisive passing move leads to Tadic heading past De Gea from close range. Unfortunately for him, the assistant referee's flag is quickly raised.
An early second-half attempt from Mata fails to threaten Forster's goal.
The teams have re-emerged from the tunnel and the second 45 is off and running. No changes from either side at half-time.
Puel and Southampton will not be too discouraged, however. Their performance thus far has been an obvious improvement on last weekend's draw with Watford, although they still lack cutting edge with Redmond supporting Long up front.
That is perhaps to be expected with Mane and Pelle now gone. How long before we see Austin after the break?
So Ibrahimovic's third consecutive scoring turn has given United a narrow half-time lead. Mourinho will be massively encouraged by his form, while some of the passing patterns featuring the likes of Pogba and Mata have been very nice to watch.
Manchester United 1-0 Southampton