DUBLIN - Matt Kuchar fired a two-under par 70 to seize a two-stroke lead over fellow Americans Kevin Chappell and Kyle Stanley after Saturday's third round of the $6.2 million US PGA Memorial tournament. In a round where world number one Tiger Woods struggled to a 79 to stand 16 strokes off the pace and second-ranked Rory McIlroy settled for a 75 and stood 14 strokes back, Kuchar offset back-nine stumbles with long birdie putts. Kuchar birdied the par-3 fourth and par-5 seventh but closed the front nine with a bogey. He responded with a 19-foot birdie putt at the par-4 10th, then sandwiched two birdies between bogeys at the par-3 12th and par-5 15th. After 54 holes, Kuchar was on eight-under 208 with Stanley and Chappell both on 210. Stanley stumbled to a 73 while Chappell fired a 68. –AFP