Ana's tinkering with her serve.
"I started changing it and I started making a big issue out of it," she said. "The more I thought about it, the more pressure I put on myself trying to hit the perfect serve.
"Instead of just relaxing... it went down the pipe pretty far."
Ivanovic joked: "I'm so confused right now it doesn't matter. In the past two months, I changed it five or six times, trying to figure out what feels most natural.
The Serb believes she is close to fixing the problem with the shorter swing.
"Hopefully I found what is going to give me the most power and most consistency," she said. "I just tried it in practice the other day and it felt pretty good straightaway, so hopefully it will stay that way."
An oddly refreshing quote, though let's face it, it's a bit disconcerting that she's tinkering with her serve while she's got no coach and no fitness trainer. We'll see.