The USA are on course to win a seventh consecutive Presidents Cup after dominating Friday's fourballs to move into an 8-2 lead at Liberty National.
Steve Stricker's side claimed four-and-a-half points out of five on day two in New Jersey to leave Nick Price's International team staring down the barrel of a 10th defeat from 12 contests since the competition was first held in 1994.
American rookies Charley Hoffman and Kevin Chappell thrashed Anirban Lahiri and Charl Schwartzel 6 and 5 in the fourth game to get an early point on the board.
Recently-crowned FedEx Cup winner Justin Thomas and Rickie Fowler overcame South African pair Louis Oosthuizen and Branden Grace 3 and 2, but with the three remaining contests close at that stage the International side would have harboured hopes of reducing the deficit.
Instead big-hitting partnership Dustin Johnson and Brooks Koepka took the 15th and 16th to beat Jhonattan Vegas and Adam Scott 3 and 2 and Adam Hadwin and Hideki Matsuyama blew a 2-up lead with four to play as Patrick Reed and Jordan Spieth snatched a half in the top game.
Veteran Phil Mickelson then made a 12-foot birdie on the 18th as he and Kevin Kisner came from two down at the turn to win one up against Jason Day and Marc Leishman.
There are four fourball matches on Saturday before the 24 players go head-to-head in 12 singles matches on Sunday, with 15 1/2 points required for victory.
Source: PA
