26 April 2014 Last updated at 13:15

World Championship 2014: Ronnie O'Sullivan overcomes Joe Perry

World Snooker Championship

  • Venue: The Crucible, Sheffield
  • Dates: 19 April - 5 May

Coverage: Watch live on BBC TV, Red Button, online, connected TVs, mobiles and tablets. Updates on BBC Radio 5 live

Reigning world champion Ronnie O'Sullivan fights back to beat Joe Perry 13-11 to reach the quarter-finals of the World Championship at the Crucible.

Perry had led 9-7 when play resumed on Saturday morning, but O'Sullivan produced two century breaks in the last two frames having been behind in the whole match.

The 'Rocket' will either play Shaun Murphy or Marco Fu in the last eight.

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