Golfers have long spoken about getting the yips when they get closer to their putting target.
Those twitches are bothering more of the top line golfers as their date with the Olympics in Rio draws nearer.
When world number 3 Rory McIlroy talks about cancelling his Olympic start because of the Zika virus, tremors will be growing amongst the game and Rio organisers.
Adam Scott, Charl Schwartzel, Louis Ossthuizen, Marc Leishmann, Miguel Angel Jimenez and Vijay Singh have pulled out and McIlroy and recent Masters champion Danny Willett are now pondering whether to join that list.