Can't believe how did she defeat Sirotkina.
Calling Ana, women Karlovic is funny. She serves well but her 2nd serves are crap!! A good serve returner or a WTA top 100 player can easly slaughter her if she can't find her 1st serve.
Btw, I talked couple of times with her coach and he is a funny and nice man.
looks you don't know much about tennis so better keep quite. Ana has very good second serve , she can improve it of ourse and that should be goal of Ana and her coach now when she'll be facing better and better players..but like this her second serve is better than most of the top 200 players that I saw