Sir, – Do endless grunts and fist pumps really help players win tennis matches? – Yours, etc,DERMOT McCARRON,Dublin 14.
Letters to the Editor, January 4th: On the age of quantum politics, and undersea cables and neutrality
Marty Morrissey: ‘I’m an only child of an only-child dad and an only-child mum. I’ve no aunts, uncles or first cousins’
