Fly-half Danny Cipriani announces engagement to girlfriend

5. Will Carling – Princess Diana

The most famous of all the rugby/celebrity relationships.

They became close after meeting at an early morning fitness class. Worried ex-footballer Gary ­Lineker warned his married pal: “This woman is trouble”, but Will did not listen.

Carling, now 51, has always denied an affair, insisting recently: “I was a good friend to her for a period of time, and that was it.”

Okay Will, we believe you. Mate dates they were.

6. Mike Tindall – Zara Phillips

Former English rugby player Tindall is married to Zara Phillips, a grandchild of Prince Philip and Queen Elizabeth II.