Arsenal ensured the top-four race goes down to the final day of the Premier League season with a laboured win against already relegated Sunderland.
Alexis Sanchez tapped in Mesut Ozil's square pass to the relief of those inside a sparsely populated Emirates Stadium.
As Arsenal increased in urgency, Sanchez bundled in Olivier Giroud's cut-back to renew their hopes of a top-four finish for a 21st successive season.
The Gunners are a point behind fourth-placed Liverpool ahead of Sunday's final matches.
Arsene Wenger's men must beat seventh-placed Everton and hope the Reds slip up against already-relegated Middlesbrough at Anfield.