London: Southampton climbed above Manchester United into third place in the Premier League with a shock 1-0 win at Old Trafford, while Alexis Sanchez took centre-stage as Arsenal crushed Stoke 3-0 on Sunday.
Ronald Koeman`s side stole the points in a dour encounter as Dusan Tadic`s 69th minute strike boosted Southampton`s bid to qualify for the Champions League via a top-four finish.
It was the Saints` first win over United since 2003 and their first at Old Trafford since 1988.
After a wobble in early December, Southampton are firmly back on track having beaten United and Arsenal, and drawn with Chelsea, in their last three league matches.
United, now two points behind Southampton, could have few complaints after a lacklustre performance which condemned them to their first home defeat since the opening weekend of the season against Swansea.
Louis van Gaal`s team are without a win in their last three league games and recent talk of a potential title challenge is likely to be silenced as they lie 12 points behind leaders Chelsea.
Sanchez made Laurent Koscielny`s opener and then netted his 17th and 18th goals of the season either side of half-time to lift Arsenal above Tottenham into fifth spot.