Newcastle put a huge dent in Arsenal’s title aspirations on Saturday, winning 1-0 to give leaders Manchester City the chance to move eight points clear of the Gunners at the top of the Premier League.
Alexander Isak scored what proved to be the winning goal in the 12th minute, heading home Anthony Gordon’s pinpoint cross from the right.
Arsenal struggled to get out of first gear and although they dominated possession, they produced just one shot on target in the entire game.
Mikel Arteta’s men have now picked up just one point in their past three games as their title push quickly runs out of steam.
If defending champions City win at Bournemouth later on Saturday they will be eight points clear of the Gunners. Liverpool, a point behind City, host Brighton at Anfield.
Arsenal have pushed Pep Guardiola’s City hard in each of the past two seasons and appeared to be well-equipped for another title challenge but the gap already looks alarmingly big.
The injury-hit visitors started brightly in the opening seconds at St James’ Park, with Leandro Trossard dragging the ball wide.
But the home side, who had not won for five matches, quickly settled and Sweden forward Isak got between Gabriel and William Saliba to head home from Gordon’s exquisite first-time cross.
Arsenal winger Bukayo Saka lacked penetration but headed just wide in the 18th minute after leaping above his marker.
Newcastle defender Lewis Hall blocked Mikel Merino’s shot on the line after a Declan Rice corner caused chaos but the visitors lacked rhythm and failed to match the intensity shown by the home side.
Arteta opted against making changes at halftime and Newcastle came close to doubling their lead almost immediately, with Joe Willock’s shot saved by David Raya.
The Spanish boss threw on 17-year-old Ethan Nwaneri and Oleksandr Zinchenko for Gabriel Martinelli and Merino just after the hour mark.
Isak fired a shot at Raya that the Arsenal goalkeeper pushed away before Rice muscled his way into the Newcastle area and flashed a shot wide.
Arteta made further changes, introducing defender Ben White and forward Gabriel Jesus in the desperate push for an equaliser.
Arsenal struggled to build up a head of steam as the clock ticked down but they squandered a golden chance to equalise when Rice headed just wide from a Saka cross in stoppage time.
The Gunners, still missing captain Martin Odegaard, suffered a shock defeat against Bournemouth last month and drew 2-2 with Liverpool last week.
They have tough games coming up against Inter Milan in the Champions League and Chelsea next week.
The win lifts Eddie Howe’s Newcastle to eighth in the table ahead of the later kick-offs on Saturday.