2017 DP World Tour Championship winner Jon Rahm is on top of the leaderboard after the opening round of the World Golf Championships-Fedex St. Jude Invitational.
The Spaniard matched his career best round of 62 to lead five players including Bubba Watson and Hideki Matsuyama by three shots.
Meanwhile two-time Omega Dubai Desert Classic winner Rory McIlroy finished on one under par, seven behind Rahm.
The second round from Memphis Tennessee gets underway on Friday night.

Clinical Sinner holds off wildcard Jodar to reach Madrid Open semis
LIV Golf touts 'strong momentum' despite New Orleans postponement
Baptiste's variety drags Sabalenka out of comfort zone in Madrid shock
FIFA to increase financial distribution to all 48 World Cup teams by 15%
Sabalenka stunned by Baptiste in Madrid Open quarter-finals
