Hideki Matsuyama leads the FedEx St. Jude Championship by five strokes after consecutive 6-under 64 rounds, despite experiencing lower back pain and switching to a new putter. Matsuyama atoned for an early bogey with an eagle and multiple birdies, distancing himself from his closest competitor, Nick Dunlap, who trails at 12-under. Viktor Hovland sits in third place at 11-under, while Scottie Scheffler and Sam Burns are tied for fourth at 10-under. The tournament, which serves as the opener for the PGA Tour playoffs, will see the top 50 players advance to the BMW Championship next week. Denny McCarthy, who was tied with Matsuyama after 36 holes, struggled with four bogeys in his latest round. Jordan Spieth's season is nearly over after a disappointing round left him in 69th place.