It might turn out to be pretty difficult to catch Troy Matteson, attempting to become the first wire-to-wire winner on the PGA TOUR since Rory McIlroy at the 2011 U.S. Open. But playing partner Steve Stricker is starting to apply some heat. Matteson had a tough time on the par-4 fourth hole. After missing the green with his approach, his chip shot rolled back off the green. He chipped again to 7 feet and made the putt for a bogey 5. Matteson was at 18 under. Stricker, meanwhile, birdied two of his first three holes and has been putting quite nicely. He two-putted for par on the fourth and only trails by one shot at 17 under. Matteson hit a nifty chip to 2 feet on the par-5 second hole, and made the putt for a birdie 4. Stricker two-putted for a birdie 4 on the second, and then nearly aced the 186-yard third hole. He tapped in for birdie 2, closing to within two shots at that point. Chris DiMarco is also making a move, this after starting birdie-eagle on the first two holes. He was at 15 under through eight holes; Scott Brown was 4 under through nine holes and was also at 15 under. Stay tuned for more updates.