Some Arsenal fans at the Emirates on Wednesday night boycotted the opening stages of the game in protest against manager Arsene Wenger.
The empty seats created a strange atmosphere for the opening stages of the Premier League clash and it appeared it was down to a boycott protest by sections of the support.
The boycott lasted for 13 minutes in recognition of every year since Arsenal last one the title - the Invincibles season of 2003-04.
Wenger did not appear distracted by the empty seats on the touchline as he watched his side play out a goalless first half against Slaven Bilic's side.