Heather Watson ready to face Victoria Azarenka in Miami

Britain's Heather Watson says she is not going to "think too much" or "try too hard" when she faces Victoria Azarenka on Sunday in the Miami Masters.

Azarenka only dropped one game when she comfortably beat the Guernsey 19-year-old at the Australian Open back in January, but Watson says this time she will be fighting for every point.

Watson stormed into the third round with a superb 6-2 6-1 victory over world number 25 Lucie Safarova.