Rumoured New Monster for Series 9

The Mirror are claiming yet another Doctor Who scoop, this time with details on one of Series 9’s new monsters.
Although this is still a rumour spoilerphobes proceed at your own risk.
They state:
Doctor Who is to face his biggest real-life enemy – the tallest man in Europe.
British former basketball ace Neil Fingleton, who is 7ft 7in, will play underwater creature the Fisher King, a crashed alien that makes its home in Loch Ness.
He will tower over Peter Capaldi’s Doctor, who is 6ft, and 5ft 1in Jenna Coleman’s Clara in a two-part story in the new BBC1 series – the Doctor’s ninth – starting in the autumn.
Neil Fingleton has in fact officially been confirmed to appear in Toby Whithouse’s story (episodes 3 & 4), but his role remained a mystery. Whether the rumour has any truth remains to be seen.