Charley Hull and Suzann Pettersen beat Alison Lee and Brittany Lincicome 2 up in controversial fashion to give Europe a 10-6 lead over the United States going into Sunday's singles matches.
Lee missed a short putt on the 17th of their suspended fourball match and then picked up her ball under the assumption Europe had conceded - Hull was already walking toward the last hole - only for Europe to claim they hadn't conceded the short putt. Hull and Pettersen were awarded the point.
Lee and Lincicome had been 1 up after 15 holes before Hull made a birdie on the 16th to draw the Europeans level.
Hull's birdie on the 18th sealed Europe's second win from the fourballs and leaves the Americans at a huge disadvantage.