Thursday wasn't a particularly enjoyable day for Arsenal supporters. Shortly after sitting through a dull goalless Europa League draw with Red Star Belgrade, many will have scrolled through their social media feeds on the way home and discovered the horrifying extent of Santi Cazorla's ankle and Achilles tendon problems.
The graphic pictures of the injury, as well as a moving story in which Cazorla reveals he feared his foot would be amputated, goes far beyond the usual football fitness woe. Yet, ultimately, it's such a sad tale precisely because he was, and hopefully is still, such a wonderful player; possessing a low centre of gravity and tremendous balance, he was two-footed and brilliant at receiving the ball on the half-turn.