Serena bit of a bully

If a male tennis player had behaved towards a female umpire the way Serena Williams did to Carlos Ramos at the American Open, it would most likely have resulted in accusations of bullying and intimidation.

As for coaching during major championships, has the time come to either allow them on court or ban them from attending matches altogether?

Barbara Young, Derby

I am surprised the Government has gone public in such a big way with recent developments relating to the Novichok attack in Salisbury as it puts our security services in rather a poor light.

Equally, if the Russians are guilty, as seems likely, then it was a sloppy mission on their part. Had it been a film plot, would anyone have believed it?

David Robinson Belper, Derbys

What exactly does Boris Johnson have to offer if he was to become Prime Minister? Look behind the bumbling facade he likes to present and you’ll find a fanatical right-wing chancer.

He would champion the policies of the money men, hell bent on keeping and increasing their wealth, while ordinary people wouldn’t get a look in.

John Sedgwick Tamworth, Staffs