Alexis Sanchez scored his 20th goal of the Premier League campaign as Arsenal won 2-0 at Southampton on Wednesday to keep their hopes of a top-four finish alive.
Sanchez opened the scoring on the hour at St Mary’s before substitute Olivier Giroud made the game safe with a header seven minutes from time.
Victory took Arsene Wenger’s side above Manchester United into fifth place in the table and left them three points below Manchester City, who occupy the fourth and final Champions League qualifying berth.
“We were focused and I felt that when we suffered, we stuck together,” Arsenal manager Wenger told the BBC.
“We have another clean sheet and I know we can go forward and score goals. The whole team was dynamic, focused and showed a convincing desire to win the game.”
Arsenal must now win their three remaining games and hope City or third-place Liverpool drop points if they are to secure a 20th successive season of Champions League football.
Having previously taken two points from a possible 24 in away games against current top-half teams, victory was a welcome tonic.
However, it came at the cost of an injury to Alex Oxlade-Chamberlain, who has found form in a new wing-back role.