One of the more obscure Ryder Cup rules involves an envelope sealed by the captains with the name of one of their players and handed in within an hour of the end of the second day’s play.

However, it doesn’t concern the action taking place on the Saturday, but rather a potential issue in the Sunday singles.

Since 1979, which was also the first Ryder Cup between the US and Europe, the Sunday singles session has adhered to the format of all 12 players from each team taking on an opponent. You may like

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That wasn’t the case in earlier editions, where there was no obli

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