The exchange between Nigel Farage and Sir Andrew Murray:
Two-time Wimbledon champion Andy Murray replied to Mr Farage, telling him to 'record the awkward moment when you tell them you've spent most of your career campaigning to have people from Eastern Europe deported'.
Mr Farage has now hit back, telling Mr Murray: 'Dear Andy, you clearly don't understand politics or the Brexit campaign but are filled with prejudice. Concentrate on the tennis and, a word of advice, crack a smile every now and again.'
What, exactly, is Mr Farage's expertise in the field of tennis? He does seem muddled in his thinking, too, about what constitutes border control. There seems to be much that he doesn't understand, particularly the meaning of the word prejudice and perhaps he should concentrate harder.
A word of advice: Don't smile, you might frighten the ballboys and girls.