US skipper Keegan Bradley demands the Ryder Cup's 'envelope rule' is changed before the next contest as Europe captain Luke Donald defends its inclusion.

Keegan Bradley faces scrutiny over player power and his own inflexibility after the captain produced curious pairings for the Saturday morning foursomes

Europe need 2½ points to retain the Ryder Cup after dominating the USA, whose supporters engaged in thuggish, moronic and personal insults