By Cliff Renfrew

Breaking Celebrity News Staff Reporter

Tennis superstar Serena Williams has admitted that she was on her ‘death bed’ at one point during the mystery illness that almost ended both her life and glittering career.

Williams, 29, is about to make her comeback at Eastbourne’s Aegon Tournament in Great Britain this week after she was sidelined with blood clots in her lung after she cut her foot.

And the pin-up star opened-up about just how sick she really was as she tries to re-build both her life and career.