Andrea Petkovic will begin working with Steffi Graf's former coach Heinz Gunthardt on Monday, AFP reports. Gunthardt worked with Ana Ivanovic for part of last year, but he didn’t want to travel full-time and she wanted a coach who could go almost everywhere. Gunthardt won't work with No. 19 Petkovic any more than part-time, and Serbia's Petar Popovic will remain her full-time coach. "The point is that I will incorporate my ideas and experiences and give an input," Gunthardt said. "I will not be working with Andrea every day."—Matthew Cronin