Watford interim head coach Hayden Mullins: "We're really disappointed with the start we made. To concede a penalty in the opening minute was always going to make things tough. I'm disappointed with some of the goals we gave away."
Arsenal boss Mikel Arteta: "It was a really tough game. The level of urgency they had is not what we had.
"After going 2-0 up you think this is going to easy but that's a big mistake because without the ball we weren't at the races. In certain aspects of the game I didn't like what I was watching. I tried to correct that."