The sports section of the paper has a headline which reads, "Back of the Neck: Favourite Pulls Out Due to Injury". Though the Donna Noble used the phrase "back of the neck" after hitting a Sontaran in his probic vent, it's questionable whether this newspaper headline is an oblique reference to The Poison Sky. It's far more likely to be, just like the Helen Raynor-penned line itself, simply a play on the common British colloquialism, "Back of the net!" Were the article readable, it's possible that it describes a player sidelined by a neck injury.