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• West Ham won this exact fixture 1-0 last season, ending a run of 10 home league games without a win against Arsenal (D3 L7). They’ve not won back-to-back home league games against the Gunners since October 1984.
• Against no side have Arsenal won more away games in the Premier League than they have against West Ham (12 – level with Everton and Aston Villa).
• Arsenal have only won two of their last 12 away London derbies in the Premier League (D4 L6), winning 3-2 at Crystal Palace in December 2017 and 5-1 at Fulham in October 2018.
• No side has lost more Premier League games on a Monday than West Ham (29), while only Man Utd (43) have won more Monday games in the competition than Arsenal (39).
• West Ham have lost their last two Premier League home games – they last lost three in a row at home between May and August 2015, while they last suffered three consecutive home defeats in the same season in October 2013.
• Arsenal have won just one of their last 11 away Premier League matches in December (W1 D6 L4), beating Crystal Palace in December 2017. They are winless in six since then (D4 L2).
• West Ham have picked up fewer points across their last eight Premier League matches (4 – W1 D1 L6) than any other Premier League side.
• Arsenal’s Pierre-Emerick Aubameyang has been involved in 10 goals in his last 10 Premier League London derbies (8 goals, 2 assists). However, he’s yet to score in three appearances versus West Ham – against no side has he played more games without netting in the competition.
• West Ham United's Felipe Anderson hasn't scored or assisted a single goal in his last eight Premier League appearances (553 minutes on the pitch in those 8 apps); his longest run at the club in the competition without a goal involvement.
• Pierre-Emerick Aubameyang has scored 86% of Arsenal’s away Premier League goals this season (6/7), with the other being netted by Lucas Torreira. Indeed, since his debut for the club in February 2018, he’s scored 18 of Arsenal’s 43 away goals in the Premier League (42%) – no other player has scored more than five on the road for the Gunners in that time.