
Arsenal's Premier League title bid was dealt a blow after they slumped to a surprise 2-0 defeat by in-form West Ham.
Former Arsenal defender Konstantinos Mavropanos' emphatic second-half header added to a controversial early effort from Tomas Soucek as the notably below-par Gunners suffered their first home loss in any competition so far this season at the Emirates Stadium, despite David Raya saving Said Benrahma's penalty at the death.