Watch: Sabine Lisicki hits fastest ever serve in women's tennis

Sabine Lisicki set a record for the fastest serve on the women’s Tour with a 131mph delivery but she still lost 7-6, 6-1 to Ana Ivanovic at the Stanford Classic.

The German won the point despite Ivanovic getting her racket to the ball.

Lisicki’s effort was two miles an hour faster than the previous best, which was set by Venus Williams at the US Open in 2007.

“Well … at least I broke the world record for fastest serve on @WTA ...,” tweeted Lisicki.

Meanwhile, British No1 Heather Watson lost 6-3, 1-6, 7-6 to Kirsten Flipkens of Belgium in the first round of the Citi Open in Washington DC.