Henin back in the groove

Justine Henin celebrated her French Open comeback with a straight-sets win after coming through a tricky first-round match against Tsvetana Pironkova.

Playing at Roland Garros for the first time since completing a hat-trick of singles title wins in 2007, the four-time champion showed only glimpses of her scintillating best on Philippe Chatrier Court and struggled on serve throughout.