Before landing, the flight crew were not aware the nose wheel steering system was not working, as the hydraulic fluid level was low.

BBC: NEWS | Europe | Isle of Man | Air crew criticised for fire risk

Both countries play versions of the 4-2-3-1 formation that dominates the game at the highest level and both use fluid movement, technically skilled players and heavy pressing to lean on opponents all over the field.

WSJ: Like for Like Among Old Rivals

Filling them properly involves putting the fluid in, getting it up to operating temperature, then draining to get the level just right.

WSJ: By JONATHAN WELSH