DOHA, Qatar - We collected questions for Ana Ivanovic on our Twitter page and gave them to the former World No.1 to answer. Here are the results...

@macakdragi will she play fed cup in april
"I'm still not sure. I would love to though because I think we are very close now to getting to the finals. It's a huge thing - it would be a dream to win it one year. So we are really close, I hope I can make it."

@Curtos07 My question for Ana: Who is your dream mixed doubles partner? Huge fan btw. :)
"Well actually I always have fun playing with Novak, especially Hopman Cup. He's such a funny guy and he always makes me laugh so I love playing with him."

@scots_seahawk If you could invite any 3 people to a dinner party you'd host - who would it be?
"That's a tough one. Well I would definitely invite Nelson Mandela. Probably Jennifer Aniston, I love Friends... and ummm, maybe Wentworth Miller?"

@jojodegraw ask about the positive changes she's getting from Nigel. What he did to improve her game?
"We work on lots of things. My serve is definitely improving. I really feel we took that to another level and it's getting a lot better so I am really pleased about that."

@Clare09 Can u ask Ana what hair products she's been using please? Her hair looks so beautiful and shiny even during a tennis match =)
"Oh thank you so much! Well it's going to be quite disappointing, because since I have so much stuff when I travel, I never take shampoo. So I use the ones in the hotels. So that's about it. It's actually embarrassing!"

@gnl08 Q for Ana: Out of all the Grand Slams, who gives the best players party?
"Well Wimbledon definitely. That's always a very glamorous one. It's fun to get dressed up, get your hair and make-up done by professionals... yeah that's a lot of fun."

@Sumu1357 What is your daily training schedule? (on and off tournaments)
"It really depends. It varies actually depending if I'm competing or not. During the tournaments, the day before I play, I practice once for an hour or an hour or half and then try to do my rest and recovery. But on the days when I'm just practicing, I do two tennis sessions plus one fitness session, stretching or strength session."