The Saint-Etienne fans Poznan with the teams in the tunnel ahead of the 20.05 kick off at Old Trafford.
English and French football’s most successful teams emerge from the tunnel.
Brothers Paul and Florentin Pogba chat ahead of the first competitive meeting of the pair.
Goalkeeper Sergio Romero waves to his family in the crowd before his 4th start of United’s Europa League campaign.
The Europa League anthem is played as the 3,000 ‘Green Angels’ light red and green flares.
United have won all 4 of their Europa League home games this season, scoring 12 goals, conceding only once.
The clean sheet was United’s fifth in a row, with the defence unchanged from the Watford game, with Antonio Valencia, Eric Bailly, Chris Smalling and Daley Blind lining up again.
Ander Herrera kept his place as a key player in Mourinho’s team while fellow Spaniard Juan Mata also started after scoring against Watford and Leicester in his previous two games.
Zlatan Ibrahimovic has now scored 17 goals in 14 appearances against Saint-Etienne.
The strength of the United team showed how seriously Jose Mourinho is taking the Europa League with a place in next season’s Champions League at stake.
United made two changes from the home win over Watford, bringing in Belgium international Marouane Fellaini alongside Sergio Romero, replacing Henrikh Mkhitaryan and David De Gea.
Smoke consumes the Sir Alex Ferguson stand pre kick off, as captain Chris Smalling waits to swap pennants with the experienced Saint-Etienne skipper Loic Perrin.
Jose Mourinho walks down the touchline to the dressing room before half time to deliver his team talk.
Zlatan Ibrahimovic scored the only goal of the first 45, with the aid of a deflection off Vincent Pajot in the wall from a 15th minute free kick.
Anthony Martial had a good first half, and was very unlucky to see a fantastic solo run saved by the foot of fellow France international Stephane Ruffier in the Saint-Etienne goal.
Zlatan added a second following a great run by Marcus Rashford. The Swede tapped in from 5 yards out, just 70 seconds after sub Nolan Roux missed a one on one chance for the French side to equalise and score the crucial away goal.
Ibrahimovic completed his hat-trick, picking himself up after winning a penalty to convert (Below) and give United some breathing space ahead of the second leg on Wednesday 22nd February. He walked off with the match ball following his 17th career hat-trick and a 3rd against Saint-Etienne.
Jesse Lingard made a positive impact, coming off the bench at half time replacing Marouane Fellaini ahead of a much improved second half performance from United.
Paul gives Florentin Pogba a tour around Old Trafford at full time. The younger Paul had a great game in midfield alongside Ander Herrera, while Florentin unfortunately was subbed due to injury with 10 minutes to go.
The convincing scoreline gives Jose Mourinho the chance the rest some key players at the Stade Geoffroy-Guichard ahead of the EFL Cup final against Southampton.