"We are delighted to have linked with UWIC RFC, " said Scarlets head of regional development and recruitment Gareth Jenkins.

BBC: Scarlets announce UWIC match-up

"It's shunned publicity, lessening its impact, " says Patrick Hannay, a professor of architecture at University of Wales Institute Cardiff (Uwic).

BBC: The skylines in Welsh cities are changing

He said talk of alternative facilities at Uwic or Cwmbran needed to be examined carefully, including whether athletes could get there.

BBC: NEWS | UK | Wales | South East Wales | Stadium plan may affect athletics