AUGUSTA, April 13 — Former Masters champion Zach Johnson was left embarrassed after a foul-mouthed response to ironic cheers from spectators after a triple bogey at Augusta National yesterday.

Johnson, the 2007 Masters winner, missed the cut after his three-over round of 75 left him on seven-over 151 for 36 holes, his six on the par-3 12th playing a big roll in his downfall.