Leading scores after Thursday's opening round of the PGA Tour WGC-FedEx St. Jude Invitational (par 70; USA unless stated): 62 - Brooks Koepka 64 - Rickie Fowler, Brendon Todd 65 - Kang Sung-hoon (KOR) 66 - Matt Kuchar, Chez Reavie, Justin Thomas, Max Homa 67 - Phil Mickelson, Bryson DeChambeau, Im Sung-Jae (KOR), Abraham Ancer (MEX), Viktor Hovland (NOR), Sergio Garcia (ESP) 68 - Li Haotong (CHN), Shane Lowry (IRL), Hideki Matsuyama (JPN), Jason Day (AUS), Mackenzie Hughes (CAN), An Byeong-hun (KOR), Louis Oosthuizen (RSA), Bubba Watson, Jordan Spieth, Keegan Bradley, Graeme McDowell (NIR), Xander Schauffele 69 - Ryan Palmer, Webb Simpson, Jason Kokrak, Dustin Johnson, Scottie Scheffler, Matthew Wolff, Danny Willett (ENG), Nick Taylor (CAN) 70 - Marc Leishman (AUS), Jon Rahm (ESP), Matthew Fitzpatrick (ENG), Billy Horschel, Tony Finau, Michael Thompson, Kevin Kisner, Andrew Landry, Collin Morikawa, JT Poston afp