Charleston to host invitational event.
Roger Federer showing off his skills.
Sofia Kenin notches up a second WTA Tour title.
Sofia Kenin into her sixth WTA Tour final.
Sofia Kenin overcomes second-set wobble in Lyon.
'It's a relief and I'm happy,' says Sofia Kenin.
Sofia Kenin returns to winning ways.
Another handy set of tennis betting tips from Derek Bilton.
Sofia Kenin suffers early exit in Qatar.
Williams and Kenin beaten, but US into Fed Cup Finals.