Spieth leads by 3 in Northern Trust

Jordan Spieth broke out of a crowded pack with three consecutive birdies on the back nine to take command of The Northern Trust. Here’s how things stand after 54 holes in Old Westbury, N.Y. Leaderboard: Spieth (-12), Dustin Johnson (-9), Paul Casey (-7), Patrick Reed (-7), Jon Rahm (-7), Matt Kuchar (-7) What it means: Spieth came into the first event of the FedExCup Playoffs in third place in the FedExCup standings, so a win would move him into first place. But The Northern Trust is just the first of four playoff events, culminating with the Tour Championship, so let’s not get ahead of ourselves. Spieth is looking for his fourth win of the year. Round of the day: Spieth’s 6-under 64 had ups