Zalatoris was five shots off the lead after rounds of 70-69 to begin the season’s penultimate event, but he made it only a few holes into his third round before back inflammation stopped him in his tracks. Last week’s winner tweaked his back on the third hole, where he made birdie, and completed only one more hole from there before calling it quits. Zalatoris tried to have an on-course trainer adjust and stretch him in order to continue play, but when those efforts didn’t prove to be a quick fix he opted to withdraw. Zalatoris is projected to fall no further than No. 3 in points, a position that would have him begin East Lake at 7 under instead of 10 under, and it’s now unlikely he’ll retain the top spot in the standings heading into the season finale. But his agent released a statement that, despite the injury, Zalatoris expects to play in next week’s 30-man Tour Championship.