Sarasota County resident Martina Navratilova is making her mark in the world of art. Navratilova has been working with Slovak-born artist Juraj Kralik to create pieces for their new “Art Grand Slam” project. The project is compiled in a coffee table book, with individual pieces for sale. The artists create the marks by either tracing from a dry tennis ball on a wet colored surface or soaking the balls in paint, and then having Navratilova lob them onto dry canvas…read article…