Leeds United dropped to 16th in the Premier League table following their 4-1 loss to league leaders Arsenal at the Emirates Stadium on Saturday afternoon.
Both sides were unable to convert early first-half chances, with Gunners striker Gabriel Jesus' header just floating over the crossbar while Crysencio Summerville's one-two pass with Marc Roca saw a tame effort saved by Aaron Ramsdale at the 30-minute mark.
But it was Jesus who eventually broke the deadlock four minutes later from the penalty spot after Luke Ayling clipped the Brazilian who went down softly in the penalty area.
