Ding Junhui and Ronnie O’Sullivan provide potting masterclass in mesmerising opening session

Ding Junhui and Ronnie O'Sullivan produced a potting masterclass as they went toe-to-toe in their Betfred World Championship quarter-final at the Crucible.

Every frame saw a break of 50 or more as Ding raced into a 3-0 lead but O'Sullivan responded by taking the next three before the pair split the last two to go into this evening's session all-square at 4-4 in Sheffield.