Roy Keane admitted that the sight of Paul Pogba speaking to his brother during Manchester United’s 3-0 victory over St Etienne left him “bothered” because he hasn’t spoken to his own brothers that much over the last five years.

Pogba, the world’s most expensive player following his £89m move to United last summer, enjoyed a family affair on Thursday night as he went up against older brother Florentin, with his family watching on from the stands in half-and-half shirts to support the pair of them.

It was the younger brother who was left celebrating at the end though, with United seizing a healthy advantage thanks to a Zlatan Ibrahimovic hat-trick that leaves them in good shape to make the Europa League last-16 with the second leg scheduled for next weekend.

That still wasn’t enough for former United captain Keane though, as the current Republic of Ireland assistant manager criticised Pogba for his constant communication with his brother while the match was being played.

“It bothered me,” Keane said on ITV. “Pogba is a free spirit but a bit overconfident. They got on with the game in play, but it’s all part of modern game.

“They spoke more tonight than I have spoken to my brothers in last five years.”

The criticism is unlikely to crop up on Pogba’s radar though, given he took plenty of delight in facing his older brother on the pitch and admitted he can’t wait for the return leg at the Stade Geoffroy-Guichard.

“It is something very magic[al],” he said. “That doesn't happen every day so I really enjoyed it.

“I really enjoyed seeing my brother, playing against him and I will enjoy that moment and look forward to playing the next game.”

While Pogba looked to try and control the game from a slightly deeper role in midfield, he did miss chances on goal as United reverted to relying on Ibrahimovic to find the back of the net.

Manchester United vs Saint-Etienne player ratings Show all 11 1 /11 Manchester United vs Saint-Etienne player ratings Manchester United vs Saint-Etienne player ratings Sergio Romero - 6 out of 10 Endured an early scare following Eric Bailly's botched clearance but settled into the game and became more assured as time wore on. Manchester United vs Saint-Etienne player ratings Antonio Valencia - 6 Nearly scored to end a three-year drought - but it wasn't to be. Got well forward, though some of his deliveries could have been better. Respectable evening in all. Manchester United vs Saint-Etienne player ratings Eric Bailly - 6 Made one important block early on but his decision-making was found wanting on occasion. Improved as the game went on. Manchester United vs Saint-Etienne player ratings Chris Smalling - 6 Didn't look too assured at times, allowing a number of Saint-Etienne runs in behind. Strong in the air though. Manchester United vs Saint-Etienne player ratings Daley Blind - 5 Poor tracking nearly handed the visitors an equaliser in the second half. Somewhat shaky. Manchester United vs Saint-Etienne player ratings Marouane Fellaini - 4 Not the best of games for the Belgian. Struggled to have much say and was subsequently substituted at half-time. Manchester United vs Saint-Etienne player ratings Ander Herrera - 6 Kept United ticking over in the centre of the park. Recycled well and created chances for the home side. Solid evening for the midfielder. Manchester United vs Saint-Etienne player ratings Paul Pogba - 7 Strong both on and off the ball. Showed his worth with real moments of pure class and equally impressive in his defensive duties. Should have converted his headed effort though. Manchester United vs Saint-Etienne player ratings Juan Mata - 7 Rounded and comfortable evening for the Spaniard. Offered a reliable source of service to his team-mates and even managed to make a number of runs in behind the opponents' defence. Manchester United vs Saint-Etienne player ratings Zlatan Ibrahimovic - 7 His hat-trick secured victory for the home side. Lady Luck helped him in his first and it was a case of right time, right place for the second. Took his penalty with ease and provided a general source of threat throughout. Manchester United vs Saint-Etienne player ratings Anthony Martial - 7 Looked busy all night long. A real menace down the flanks and threatened in and around the Saint-Etienne box. Positive, energetic performance.

Recently, both Juan Mata and Anthony Martial had found their goalscoring form, while Henrikh Mkhitaryan has also found the back of the net though he missed Thursday’s clash at Old Trafford through illness.

Paul Pogba said playing against his brother, Florentin, was 'magical' (Getty)