Mikel Arteta's Gunners remained provisionally third in the standings on 18 points, with the two teams above them -- Manchester City and Liverpool -- playing later on Saturday. Newcastle climbed to eighth on 15 points.
Bukayo Saka became the youngest Arsenal player to score 50 Premier League goals when he returned from a hamstring injury in Sunday's 2-2 draw with Liverpool, but the winger was disappointed to drop two points after being on the verge of a crucial win.
Arsenal bounced back from their embarrassment at Bournemouth as an own goal from Shakhtar Donetsk keeper Dmytro Riznyk gave the Gunners a 1-0 win in the Champions League on Tuesday.
Saturday's 2-0 loss at Bournemouth brought Arsenal's unbeaten start to the league season to a shuddering halt.
Liverpool will head into the international break top of the Premier League after a 1-0 win at Crystal Palace before champions Manchester City and Arsenal both recovered from going behind to claim home wins on Saturday.
Mikel Arteta says title-chasing Arsenal have had to be "different" while captain Martin Odegaard is sidelined by an ankle problem.
Kai Havertz and Bukayo Saka inspired Arsenal's 2-0 success against Paris Saint-Germain on Tuesday as the Gunners secured their first win in the Champions League this season.
Arsenal wanted to provoke Manchester City into a war during last weekend's Premier League clash but the champions are ready for the challenge, City manager Pep Guardiola said on Friday.
Manchester City midfielder Rodri will miss the rest of the season with a serious knee injury, dealing a huge blow to their hopes of winning a fifth straight Premier League title.
Arsenal will have another chance to beat Bayern Munich in a Champions League knockout tie after the sides were paired in the round of 16 following Monday's draw.
Manager Mark Hughes is aware of Stoke City's poor record at the Emirates Stadium but the 53-year-old is confident his team would break the duck when they take on Arsenal in Saturday's Premier League match.
Arsenal manager Arsene Wenger foresees Alexis Sanchez staying in the striking role that brought him a hat-trick in the 5-1 victory over West Ham as long as the Chilean is scoring goals.
Arsenal manager Arsene Wenger foresees Alexis Sanchez staying in the striking role that brought him a hat-trick in the 5-1 victory over West Ham as long as the Chilean is scoring goals.
Arsene Wenger said Arsenal's lack of urgency early in the match and not his team selection was to blame for the London club's 2-0 League Cup quarter-final loss to Southampton.
Anthony Martial and Zlatan Ibrahimovic scored twice each to help Manchester United ease into the League Cup semifinals with a 4-1 home victory over West Ham United on Wednesday as Arsenal suffered a 2-0 home defeat by Southampton.
Arsene Wenger is sweating on the fitness of Olivier Giroud and Mathieu Debuchy after the France stars suffered injuries in Arsenal's 3-1 Premier League win against Bournemouth on Sunday.
Arsenal forward Alexis Sanchez is keen to play the same kind of role Lionel Messi performs at Barcelona, the Chilean international said.
Paris St Germain put themselves in the box seat to enter the Champions League knockout rounds as Group A winners after an Alex Iwobi own goal earned them a point in an entertaining 2-2 draw at Arsenal on Wednesday.
The dazzling Lionel Messi returned from illness to score yet another double to help Barcelona ease into the knockout stages of the Champions League for a 13th successive year with their 2-0 win at Celtic on Wednesday.