Faye Gaskin's drop goal with 30 seconds left on the clock saw St Helens secure a dramatic one-point victory over York Valkyrie in the Betfred Women’s Challenge Cup semi-final.
The decisive score came in quite literally the last minute to send the holders through to the final thanks to a 17-16 result over at the Halliwell Jones Stadium in Warrington on Saturday.
Gaskin held her nerve to cap an enthralling contest in which a try from Sinead Peach had nudged Valkyrie, the current unbeaten Super League leaders, into a 14-10 lead at half-time.
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Tara Jones took advantage of a fortunate bounce off the base of the post to ground the first try of a tighter second period and Amy Taylor's conversion put Saints back in front.
A cagey final half-hour burst back into life with seven minutes remaining when Tara Jane Stanley kicked a penalty from 35 metres to bring the match back all-square.
Stanley saw the first drop goal opportunity fall short before Gaskin seized her moment to seal Saints' place in their third-straight final.
Leeds Rhinos and Wigan Warriors will play in the other Challenge Cup semi-final on Sunday.