Three UK Championship quarter-final places are up for grabs this afternoon with the first to nine frames going through. This time last year eventual finalists Mark Williams and Ken Doherty both had decisive wins in the third round against Chris Small and Paul Hunter respectively. Steve Davis and John Parrott introduce the live action from the Barbican Centre in York, with Clive Everton , Dennis Taylor , Willie Thorne , John Virgo and Ray Edmonds providing the commentary. (S)