SPORTS

Dustin Johnson seizes control in BMW Championship

  • Dustin Johnson drives off the tee of the sixth hole during the third round of the BMW Championship golf tournament at Crooked Stick Golf Club in Carmel, Ind., Saturday, Sept. 10, 2016. (AP Photo/AJ Mast)

    Dustin Johnson drives off the tee of the sixth hole during the third round of the BMW Championship golf tournament at Crooked Stick Golf Club in Carmel, Ind., Saturday, Sept. 10, 2016. (AP Photo/AJ Mast)  (The Associated Press)

  • Dustin Johnson, right, Roberto Castro, center, and Paul Casey look over the putting green on the seventh hole during the third round of the BMW Championship golf tournament at Crooked Stick Golf Club in Carmel, Ind., Saturday, Sept. 10, 2016. (AP Photo/AJ Mast)

    Dustin Johnson, right, Roberto Castro, center, and Paul Casey look over the putting green on the seventh hole during the third round of the BMW Championship golf tournament at Crooked Stick Golf Club in Carmel, Ind., Saturday, Sept. 10, 2016. (AP Photo/AJ Mast)  (The Associated Press)

  • Paul Casey, of England, reacts after missing a putt on the sixth hole during the third round of the BMW Championship golf tournament at Crooked Stick Golf Club in Carmel, Ind., Saturday, Sept. 10, 2016. (AP Photo/AJ Mast)

    Paul Casey, of England, reacts after missing a putt on the sixth hole during the third round of the BMW Championship golf tournament at Crooked Stick Golf Club in Carmel, Ind., Saturday, Sept. 10, 2016. (AP Photo/AJ Mast)  (The Associated Press)

U.S. Open champion Dustin Johnson ran off four birdies in his last five holes Saturday for a 4-under 68 and took a three-shot lead into the final round of the soggy BMW Championship.

Paul Casey did his best to stay with him. Casey, coming off a runner-up finish last week in the FedEx Cup playoffs, matched two of Johnson's birdies during his late run for a bogey-free 68.

Johnson ended with an 18-foot birdie putt that put him at 18-under 198. He will be going for his third victory of the year and move to the top of the FedEx Cup going into the finale at the Tour Championship.

Roberto Castro, tied with Johnson going into the third round, didn't make a birdie in his round of 74.