Arsenal's Alexandre Lacazette celebrates scoring their first goal during the match Premier League between Arsenal vs West Ham United at Emirates Stadium, London, March 7, 2020. Alexandre Lacazette earned Arsenal a hard-fought 1-0 win over a wasteful West Ham United side at the Emirates. Action Images via Reuters/John Sibley

Arsenal's Alexandre Lacazette scores their first goal during the Premier League between Arsenal vs West Ham United at Emirates Stadium, London, March 7, 2020. REUTERS/David Klein

West Ham United's Sebastien Haller in action with Arsenal's Bernd Leno during the match Premier League between Arsenal vs West Ham United at Emirates Stadium, London, March 7, 2020 Action Images via Reuters/John Sibley

Arsenal's Bukayo Saka in action with West Ham United's Jeremy Ngakia during the match Premier League between Arsenal vs West Ham United at Emirates Stadium, London, March 7, 2020 . REUTERS/David Klein

Arsenal's Bernd Leno saves a shot from West Ham United's Sebastien Haller during the match Premier League -between rsenal vs West Ham United at Emirates Stadium, London, March 7, 2020. REUTERS/David Klein

Arsenal's Pierre-Emerick Aubameyang and Alexandre Lacazette celebrate after the match Premier League between Arsenal vs West Ham United at Emirates Stadium, London, March 7, 2020 Action Images via Reuters/John Sibley