Arsenal lost further ground at the top of the Premier League as Pedro Neto struck a wonderful equaliser to earn Chelsea a 1-1 draw in an electric encounter at Stamford Bridge.
Mikel Arteta side were winless in three matches in the league, but the victory their ailing title hopes required seemed within reach when Gabriel Martinelli broke the deadlock with a clever near-post finish in the 60th minute of a fascinating tussle.
