Graeme McDowell, a former U.S. Open champion, has been suspended for one tournament and fined $125,000 by LIV Golf for violating the league's anti-doping policy by using a nasal decongestant containing the banned substance R-methamphetamine. The violation occurred during the LIV Nashville event in June, leading to the disqualification of McDowell's and his team's results from that event. McDowell, who will miss the upcoming LIV Greenbrier event, accepted the sanctions and acknowledged his mistake in not checking the medication. He emphasized the rigorous enforcement of anti-doping rules by LIV Golf in comparison to other tours. McDowell, currently 23rd in the LIV Golf standings, will be eligible to return for the LIV Chicago event in September.