Arsenal missed out on the chance to move up to third place in the Premier League as they fell to a 1-0 defeat against Sheffield United on Monday.
Unai Emery’s men entered the match unbeaten in eight matches, including five in the top flight, but came unstuck at Bramall Lane.
The only goal of the game was scored by Lys Mousset half an hour in, coming shortly after Nicolas Pepe had failed to round off a swift counter.
Arsenal had a strong penalty appeal turned down and ultimately could not find a way through, leaving them fifth in the table and winless in four league visits to this ground.
The visitors were punished for Pepe’s close-range miss by Mousset’s opener eight minutes later.
Jack O’Connell headed down a corner into the six-yard box, where Mousset was waiting to pounce to double his tally for the season.