Re: How good is your serve?
My serve is great when it's consistent. When it's inconsistent it's abysmal. My second serve is alright, it's improving as I'm gaining more confidence in it, but it can still be a bit of a puffball when I don't have the confidence in it.
Australian Open 2008
French Open 2012, 2014
US Open 2006
Victoria Azarenka | Petra Kvitova | Angelique Kerber | Caroline Wozniacki | Serena Williams | Heather Watson | Eugenie Bouchard