Rio Dyer backed to show “superpowers” after Six Nations omission

Dyer has travelled to South Africa with the Dragons for the Challenge Cup match against Lions on Saturday in Johannesburg.

“He is just getting on with things,” said Tiatia.

“He is back in the saddle and is pretty motivated and has been impressive this week.

“We are happy that he is with us but not happy that he has not been picked. The more players that get opportunities to play for their country, the merrier.”

Three Dragons players were named in Gatland’s squad with number eight Aaron Wainwright and hooker Elliot Dee travelling to South Africa and scrum-half Rhodri Williams staying at home to recover from a minor knee niggle.

Captain Angus O’Brien is missing with a thumb injury and Cai Evans is facing a lengthy period on the sidelines because a serious Achilles problem, leaving Will Reed and Lloyd Evans as the fly-half options in Johannesburg.

The Dragons need to avoid defeat against Lions if they are to sneak into the Challenge Cup knockout stages.

A draw would put them through on points difference, with a try bonus-point needed if the Lions cross the Dragons line four times.

A last 16 place would be a welcome respite from the United Rugby Championship (URC) where Dragons are bottom of the table with eight defeats in nine games.