Mark Allen battles back to stay in scrappy Crucible semi against Mark Selby

NARROW LEAD: Mark Selby holds a narrow lead. Pic: Zac Goodwin/PA

Mark Allen won three of the final four frames to stay within one of Mark Selby in their scrappy World Championship semi-final.

Former champion Stephen Hendry accused the pair of casting a “dark cloud” over the Crucible with their attritional play during a second session on Friday that was halted three frames early.