Unlikely circumstances

A stirring, tireless second-half display somehow kept them in the game, Mike Phillips darting over for the game's only try with 23 minutes left to set up a desperate finale.

But Stephen Jones hit the post with the conversion which would have snatched the lead, and Leigh Halfpenny then came up just short with a long-range penalty at the death.

For France, beaten twice in the pool stages and seemingly on the ropes, now comes their third World Cup final in the most unlikely of circumstances.

It was an evening to haunt Welshmen for years. France offered almost nothing despite their numerical advantage, while two first-half missed penalties from James Hook were also critical in the final analysis.

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I would write 'most unlikely circumstances'.

Why should it be 'most unlikely of circumstances' in the above?

For me most unlikely circumstance means the possibility of happening some untoward event is nearly impossible.