WATFORD, ENGLAND – APRIL 15: Nacho Monreal of Arsenal is challenged by Andre Gray of Watford during the Premier League match between Watford FC and Arsenal FC at Vicarage Road on April 15, 2019 in Watford, United Kingdom. (Photo by David Price/Arsenal FC via Getty Images) *** Local Caption *** Nacho Monreal;Andre Gray

WATFORD, ENGLAND – APRIL 15: Lucas Torreira of Arsenal during the Premier League match between Watford FC and Arsenal FC at Vicarage Road on April 15, 2019 in Watford, United Kingdom. (Photo by David Price/Arsenal FC via Getty Images) *** Local Caption *** Lucas Torreira

WATFORD, ENGLAND – APRIL 15: Konstantinos Mavropanos of Arsenal during the Premier League match between Watford FC and Arsenal FC at Vicarage Road on April 15, 2019 in Watford, United Kingdom. (Photo by David Price/Arsenal FC via Getty Images) *** Local Caption *** Konstantinos Mavropanos

WATFORD, ENGLAND – APRIL 15: Aaron Ramsey of Arsenal during the Premier League match between Watford FC and Arsenal FC at Vicarage Road on April 15, 2019 in Watford, United Kingdom. (Photo by David Price/Arsenal FC via Getty Images) *** Local Caption *** Aaron Ramsey

VALENCIA, SPAIN – MAY 09: Ex Arsenal player Santi Cazorla in the crowd during the UEFA Europa League Semi Final Second Leg match between Valencia and Arsenal at Estadio Mestalla on May 09, 2019 in Valencia, Spain. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

VALENCIA, SPAIN – MAY 09: (2ndR) Alex Lacazette celebrates scoring the 2nd Arsenal goal with (R) Granit Xhaka, (L) Bernd Leno, (2ndL) Henrikh Mkhitaryan, (3rdL) Alex Iwobi and (4thL) Matteo Guendouzi during the UEFA Europa League Semi Final Second Leg match between Valencia and Arsenal at Estadio Mestalla on May 09, 2019 in Valencia, Spain. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

VALENCIA, SPAIN – MAY 09: Mesut Ozil of Arsenal takes on Daniel QWass of Valencia during the UEFA Europa League Semi Final Second Leg match between Valencia and Arsenal at Estadio Mestalla on May 09, 2019 in Valencia, Spain. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

VALENCIA, SPAIN – MAY 09: Alex Lacazette celebrates scoring the 2nd Arsenal goal during the UEFA Europa League Semi Final Second Leg match between Valencia and Arsenal at Estadio Mestalla on May 09, 2019 in Valencia, Spain. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

VALENCIA, SPAIN – MAY 09: Alex Lacazette scores the 2nd Arsenal goal during the UEFA Europa League Semi Final Second Leg match between Valencia and Arsenal at Estadio Mestalla on May 09, 2019 in Valencia, Spain. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

VALENCIA, SPAIN – MAY 09: The Arsenal team line up before the UEFA Europa League Semi Final Second Leg match between Valencia and Arsenal at Estadio Mestalla on May 09, 2019 in Valencia, Spain. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)