Luke Donald's card had to be rechecked after a keystroke error left him with the wrong score during the first round of the Masters.

The world's top-ranked player signed for a 3-over 75, including a three-putt bogey on No. 5 Thursday, and the card was verified. But the person entering scores into the computer put him down for a 3, giving him a 73. Once the error was spotted, Donald's score had to be re-verified.

Had Donald signed for the wrong score, he would have been disqualified.