World number one Brooks Koepka has no doubt Patrick Reed intentionally improved his lie during a controversial incident in December.
Patrick Reed has been on the defensive after becoming embroiled in controversy at the Hero World Challenge, with Rory McIlroy on his side.
Tiger Woods and the United States aim to put Patrick Reed's Hero World Challenge controversy behind them at the Presidents Cup.
A stunning approach shot to the 15th green helped Henrik Stenson secure a one-shot triumph in the Bahamas.
A two-stroke penalty dented Patrick Reed's hopes of victory in The Bahamas, with the Texan adamant he did not intend to break the rules.
Tiger Woods impressed again on a chaotic day at the Hero World Challenge, as Patrick Reed fell away spectacularly and Gary Woodland led.
Tiger Woods looms large at the Hero World Challenge, where fellow American Patrick Reed holds a three-shot lead.
Gary Woodland and Patrick Reed led the Hero World Challenge after the first day of play, with Tiger Woods six shots back in a tie for 11th.
World number four Dustin Johnson will miss next week's Hero World Challenge.