England's series-deciding fifth Test against India was sensationally cancelled before a ball had been bowled on the first morning at Emirates Old Trafford after the tourists were unable to field a team.

Here, the PA news agency looks at exactly what is known about that decision and what it might mean.

Why did India pull out of the game?

There will surely be a review of protocols in any post mortem, but it has long been accepted that a return to last year's restrictive 'bio-secure bubbles' was too much to ask of players. A more lenient set of measures were in place this summer, allowing for some greater freedoms alongside common sense judgements. Whether Shastri's apparent appearance at a book launch or the repeated appearances of pitch invader 'Jarvo' contributed to breaching the security of the squads are questions to be looked at another time.