Heather Watson withdraws from Miami Masters doubles

Heather Watson has withdrawn from the women's doubles at the Miami Masters with a hip injury.

The British number one was knocked out in the first round of the singles competition on Tuesday by Japan's Ayumi Morita.

She will now take no further part in Florida due to a left adductor problem.

Following her defeat to Morita, Watson claimed that she would be taking a break from the sport before backtracking on her comments 24 hours later.