Jubilant Arteta proud of side's courage after Arsenal come through 'madness'

Arsenal's William Saliba celebrates his sides third goal scored by Reiss Nelson during the Premier League match at the Emirates Stadium, London. Picture  John Walton/PA Wire. 

Mikel Arteta wants Arsenal to make things easier for himself, but he will cherish how the Premier League leaders came through the "madness" to turn a 2-0 home deficit to Bournemouth into a dramatic last-gasp win. 

Arsenal were one-down in nine seconds, after Philip Billing scored the second-fastest goal in Premier League history.