The 2014 champion Mark Selby is tied 12-12 with Hong Kong’s Marco Fu after the longest frame in World Championship history at the Crucible.
It took Englishman Selby 76 minutes and 11 seconds to win the final frame of the morning session in the semi-final.
The previous longest frame of 74 minutes and 58 seconds was set by Mark King and Stephen Maguire in 2009.
Selby and Fu will play their best-of-33-frame match to a conclusion from 19:00 BST on Saturday.
In the other semi-final, China’s Ding Junhui leads Scotland’s Alan McManus 14-10 when their final session begins this afternoon.
More to follow.