A sensational fightback from Rafael Cabrera Bello and Sergio Garcia saw Europe reduce its deficit to a solitary point after the third session of five at the Ryder Cup.
As a result, the United States held a 6 ½-5 ½ lead entering Saturday's fourball matches. The day will set up Sunday's decisive singles matches at Hazeltine National Golf Club.
Europe took a 4-0 thrashing in the alternate-ball format on Friday but revived its hopes of winning a fourth successive Ryder Cup by winning three of the four subsequent fourball matches.
The Americans looked set to retain their two-point lead with foursomes victories on Saturday morning, only for Garcia and Cabrera Bello to steal an unlikely half against Patrick Reed and Jordan Spieth.