Elneny, the Egyptian midfielder, described the victory as ‘special’ and it saw Arsenal climb into the top half of the league.
They are now just a point behind those occupying the Champions League spots ahead of their next clash with Aston Villa, with Mikel Arteta hopeful his side have turned a corner.
But while many thought it would be tough for Arsenal, who had lost their last 29 away matches against ‘Big Six’ opposition, to pick up three points on Sunday, Elneny was certain the result was never in doubt.
‘It feels really amazing, I feel really happy,’ Elneny said. ‘It is special to win against Manchester United here.
‘We know it is a long time since we won here. We gave 100% and everyone worked really hard for it.
‘We know how special it is for us, that’s why we gave everything to win this game.
‘No [we weren’t concerned about not scoring in the first half] because we spoke and said we have to keep on our game, even if we miss.
‘We created more chances to score. But we didn’t worry, we knew we were going to win this game.’