Tottenham is a dangerous team but Arsenal are more than good enough to hand them a beating on Sunday but only if they select a team that can be relied upon to do their jobs properly and efficiently.
Arsenal has players in their squad that are unreliable, no point denying that and Unai Emery has to avoid the temptation of fielding those players despite their reputations.
David Luiz, Granit Xhaka and Mesut Ozil could all be picked to play against Tottenham, in fact, I am fairly certain that Luiz will be on at the start but that does not negate the fact that the Brazilian along with Ozil and Xhaka are notoriously inconsistent and that should surely be too much of a risk for Emery in a game of this magnitude.
On his day Ozil can be sublime, Xhaka can be pivotal and Luiz exciting but they also have a downside that the Gunners cannot afford on Sunday, there is no room for passengers.
Ozil goes missing on aa regular basis, Xhaka, more often than not, can be ineffectual and Luiz an outright liability and Emery has enough quality cover for the trio without having to take an unnecessary risk.
Callum Chambers can easily cover for Luiz, Ceballos should be picked ahead of Ozil anyway and there are more than enough midfielders to play in the Xhaka role so it is not as if the manager has to pick any of them.
But Emery has that frustrating ability to pick a team that makes no sense and it would not surprise me if he picked all three.