Arsenal earned their first point at Chelsea in six years – a fully deserved reward for an excellent display that could even have brought victory against the Premier League champions, who finished with 10 men.
The Gunners had previously only kept one clean sheet in their past 18 league games at Stamford Bridge, so this will surely leave manager Arsene Wenger satisfied after the defensive fiasco of the 4-0 loss at Liverpool in August.
Pedro missed Chelsea’s best chance in the first half when he raced clear but was blocked by Arsenal keeper Petr Cech.
Arsenal, however, had arguably the better chances as Danny Welbeck headed wide in front of goal and Aaron Ramsey struck a post, Alexandre Lacazette firing the rebound over an open goal.
The second period was a tighter affair, the Blues’ frustrations boiling over in the closing minutes when David Luiz was shown a straight red card for a reckless challenge on Sead Kolasinac.