Scottie Scheffler kept coming back to the same answer when asked in different ways how a day that began with optimism at the U.S. Open turned into a 5 1/2-hour slog that left him well off the front page of the leaderboard.

Scottie Scheffler's frustrations were there for all to see during his U.S. Open third round at Oakmont, as the world No. 1 smashed the ground with his club

Scottie Scheffler remains in the mix at the U.S. Open, but the world No. 1 has been off the pace at Oakmont - and tensions are threatening to boil over as he keeps uncharacteristically losing his cool