Tennis star Serena Williams has a hidden talent as a rapper - but won't be pursuing a music career because she is "too shy". The former world number one is more used to beating opponents on the tennis court than slaying rappers on the mic, but insists she has a genuine musical talent. However, she dismisses her chances of a possible future in music. She tells, "A lot of people don't know that about me, but I am. I don't freestyle or anything, but I can definitely rap. I also play the guitar. "(But) a rapping guitarist - that would be so weird. I'm too shy to do that."