Thursday's Europa League reports
Fenerbahce 2-1 Manchester United
Fenerbahce scored two stunning goals to beat Manchester United 2-1 and leave Jose Mourinho's side in danger of Europa League elimination.
Striker Moussa Sow gave Fenerbahce the lead within 65 seconds with an overhead kick which sailed over David de Gea, and Jeremain Lens curled in a brilliant free-kick in the second half.
The visitors dominated possession but saw world record signing Paul Pogba go off with a leg injury in the first half.
Captain Wayne Rooney smashed in a 25-yard consolation goal, late on.
Defeat means United are third in Group A - one point behind leaders Feyenoord and Fenerbahce - with two games left, against the Dutch side at Old Trafford and away to Ukraine's Zorya Luhansk.
Qualification for the next stage remains in the Reds' hands, but they will need to be more incisive against their next opponents.
Zenit St Petersburg 2-1 Dundalk
Dundalk produced a battling performance as a double from Brazilian Giuliano gave Zenit St Petersburg a 2-1 win in Thursday's Europa League Group D game.
Giuliano fired home right-footed to give the Russians the lead before half-time but Daryl Horgan levelled with a composed finish on the counter-attack.
The hosts nudged ahead with a scrappy goal after Dundalk failed to clear, before Patrick McEleney hit the bar.
Zenit qualify for the last 32 while Dundalk retain hopes of joining them.
Southampton 2-1 Inter Milan
Southampton remain on course to reach the Europa League knockout phase after fighting back to earn a memorable 2-1 win against Italian giants Inter Milan.
Inter scored with their first shot on target when skipper Mauro Icardi pounced to smash in a loose ball.
Dusan Tadic missed a controversial penalty in first-half injury-time, but Virgil van Dijk hooked in to level as Saints improved after the break.
And they claimed all three points after Yuto Nagatomo's own-goal howler.
The Inter defender allowed Tadic's left-wing cross to bounce off his thigh and loop over his keeper Samir Handanovic.
Victory keeps Saints second in Group K with seven points from their four matches, meaning they will be assured of a place in the last 32 if they win at leaders Sparta Prague in their next game on 24 November.