Tottenham suffered their first setback of the Ange Postecoglou era after they exited the Carabao Cup at Fulham after Davinson Sanchez had an effort saved in a 5-3 defeat on penalties.
Mikel Arteta insisted it has not become a psychological issue for Arsenal after they conceded in the first minutes of a home game for the third time this year against Fulham.
Arsenal could not protect a 2-1 lead against 10 men as Joao Palhinha's 87th-minute strike rescued a point for Fulham at the Emirates.
Everton boss Sean Dyche has dismissed talk of a crisis at the club after defeats in their opening two matches left them bottom of the table.
Everton paid the price for a string of missed chances as their goalscoring issues were exploited by Fulham in a 1-0 defeat at Goodison Park.
There will be a London derby between Fulham and Tottenham in the second round of the Carabao Cup.