Phil Mickelson opens with three-under 67 in first round of U.S. Open for clubhouse lead . It gave him the clubhouse lead , and when the rest of the field had finally finished their rounds Friday he had a one-shot advantage over England 's former world No . 1 Luke Donald . ` The world's top golfers are set to play a second day at the prestigious course on Thursday as they attempt to win their third major title together. Veteran has one-shot lead over England 's Luke Donald , who completed his round on Friday . Top-ranked duo Tiger Woods and Rory McIlroy both finish with three-over 73 on Friday .
Phil Mickelson opens with three-under 67 in first round of U.S. Open for clubhouse lead . The world's top golfers are set to play a second day at the prestigious course on Thursday as they attempt to win their third major title together. Veteran has one-shot lead over England 's Luke Donald , who completed his round on Friday . Top-ranked duo Tiger Woods and Rory McIlroy both finish with three-over 73 on Friday .