LONDON, ENGLAND - SEPTEMBER 29: Joel Campbell of Arsenal during the UEFA Champions League match between Arsenal and Olympiacos at the Emirates Stadium on September 29, 2015 in London, United Kingdom. (Photo by Catherine Ivill - AMA/Getty Images)
LONDON, ENGLAND - SEPTEMBER 29: Joel Campbell of Arsenal during the UEFA Champions League match between Arsenal and Olympiacos at the Emirates Stadium on September 29, 2015 in London, United Kingdom. (Photo by Catherine Ivill - AMA/Getty Images)