All four of their goals across the two games come in the opening 25 minutes.
Arsenal have dropped points in back-to-back Premier League games when having a two-goal lead for the first time in their history.
Arsenal have given away 2-0 leads twice in the space of seven days in the Premier League:
◎ 21' Liverpool 0-2 Arsenal
◉ FT: Liverpool 2-2 Arsenal
◎ 10' West Ham 0-2 Arsenal
◉ FT: West Ham 2-2 Arsenal
West Ham have earned at least a point in a Premier League game when being 2-0 down for the first time since October 2020 when they drew 3-3 with Tottenham.
Arsenal had 73.6% possession in the opening 45 minutes against West Ham.