I remember it being extremely painful and unpleasant for a few days and basically I had to drink soup through a straw until the symptoms subsided, so I can imagine what Sackey's going through all too easily.
The other factor is, of course, that mumps is incredibly infectious and Brian Ashton is, quite rightly, insisting that his squad is blood-tested and, where appropriate, immunised. The last thing he needs is for England's Six Nations campaign to be derailed by illness - he must be wondering if it's déjà vu all over again* after England's ill-fated trip to South Africa last summer when an already severely depleted squad were decimated by a stomach virus which left David Strettle hooked up to a drip in hospital.
The trick to being a successful coach is often just a question of being a lucky coach and I'm beginning to wonder whether Ashton used up all his luck in France in October?
* courtesy of the late, great Yogi Bera