It is a curious quirk of the past two seasons that Arsenal rank top of the Premier League for headed goals given the type of team they are supposed to be.

Arsene Wenger's team lack "cojones", according to Troy Deeney and that, he said, was the reason Watford were able to come from behind to win last weekend's encounter. For years Arsenal have been said to be too meek, and struggle against physical sides.

And yet, at the other end of the pitch they are more effective than any other side, scoring the most headers this season, having done exactly the same last season, too. Doing so in one season could just be a slightly unusual anomaly, but a second successive season points to something more significant at play.

First off, there is the obvious answer: a big, red, bearded French thing that Wenger sometimes sticks up front.

Olivier Giroud is patently the biggest aerial threat in Arsenal's squad. He is perfect for a team that so often comes up against two deep banks of four, clinging on at the Emirates for a point.