Wimbledon kicked off yesterday with Andy Murray beginning the title quest against world number 58 Mikhail Kukushkin of Kazakhstan.

To get into the spirit of things we sent features writer Nikki off to learn a tennis trick or two from Wimbledon super star Martina Navratilova…

Martina Navratilova is a tennis expert and tournament commentator on BT Sport, which shows 21 exclusively live WTA events each year.