Lee Westwood has apologised to his Twitter followers after becoming involved in an unsavoury exchange following his final round collapse at Oak Hill on Sunday evening.
The Englishman crashed out of contention for the US PGA Championship after a closing six-over-par 76 left him 13 shots adrift of first-time major winner Jason Dufner.
His inability to convert a number of chances with the putter contributed to the 40-year-old's dismal round and the trolls were queuing up to ram home the point on social media.
However, the expletive-littered exchanges became out of hand and he chose to end the 'conversation' with: 'These were not aimed at decent human being followers of course, just those who should be locked up by the twitter police'.
But after a coolling off period, Westwood, who failed to end his search for a first major win at last month's Open Championship after entering the final day in a similar position, apologised for his rant.
Returning to Twitter, he said: "Sincere apologies to my sponsors and true followers for my earlier comments. It was out of order and out of character, Westy."