Bruno Senna has calmed a wave of fears about his health by declaring "I'm fine". Rumours buzzed around the internet that the Williams driver had been injured less than a month before the 2012 season...

Bruno Senna has calmed a wave of fears about his health by declaring "I'm fine".

Rumours buzzed around the internet that the Williams driver had been injured less than a month before the 2012 season.

In fact, the injured driver is Japanese karter Sakaguchi Sena.

"Guys, I'm fine," Senna wrote on Twitter. "There's been a confusion about me hurting myself.

"Whoever it is that actually got hurt, I wish him a speedy recovery."

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