Ernie Els was still hurting on Monday - a day after his bogey-bogey finish at the PGA Transitions Championship cost him a victory and a spot in next month's Masters.
The Big Easy wrote in a blog on the US PGA website that he was disappointed and angry with himself.
He said he was so hot he found it difficult to even think straight.
The big easy admits that he tensed up on the 18th green and botched a short putt that would have got him into a four-man playoff - subsequetnly won by Luke Donald.
Els is ranked 62 at the moment and must either win one of the next two PGA events -- this week at Bay Hill and next week in Houston -- or reach the top 50 in the rankings to book a Masters berth at Augusta National in early April.