7 - Arsenal have not won any of their last seven matches in all competitions (D5 L2) - they never went on as poor a run across 1235 games under Arsène Wenger, last waiting this long for a win in February 1992 under George Graham (8 games). Denouement.
They finished fifth in 48-year-old Emery's first season in charge at Emirates Stadium after he replaced Wenger.
The Gunners started this season with back-to-back victories against Newcastle and Burnley, but that run ended with defeat by Liverpool, before draws with north London rivals Tottenham and Watford followed.
Their last Premier League victory was a 1-0 win over Bournemouth.
On Saturday, they battled to a 2-2 draw - their sixth of the season - at home to Southampton, with Alexandre Lacazette scoring an injury-time equaliser.
Emery is the third managerial dismissal in the English top flight this season, after Javi Gracia and Mauricio Pochettino departed Watford and Tottenham respectively.
Arsenal's last victory came against Vitoria Guimaraes in the Europa League on 24 October, in which they needed two late Nicolas Pepe free-kicks to secure a 3-2 win.