Jon Rahm received an official code of conduct warning after tossing his club on the 15th hole at the Open Championship on Friday, the R&A confirmed.
Rahm hit his tee shot with an iron and immediately could see the ball was going off to the left. The Spaniard then threw the club into the ground and it took a big bounce before landing.
Rahm was reportedly informed of the warning by tournament officials as he approached the 17th hole at Royal Birkdale Golf Club in Southport, England.
A second offense this weekend could result in a two-stroke penalty.
Rahm shot 3-under 67 on Friday and is 4 under for the tournament. He was part of a large tie for eighth place when he completed a round that consisted of six birdies and three bogeys.
