Mikel Arteta bizarrely brought up the match ball when breaking down Arsenal’s 2-0 defeat by Newcastle.
In the Carabao Cup, a Puma ball is used, whereas a Nike ball is used in the Premier League.
When asked about Arsenal’s missed chances — they had 23 shots, but just three on target — Arteta replied: ‘We also kicked a lot of balls over the bar, and it's tricky that these balls fly a lot so there’s details that we can do better.
‘But at the end that’s gone, there’s no way back it's about the next game and that’s our world, the reality.