Former British and Irish Lion Danny Grewcock believes Billy Moss has the potential to become a Premiership force, and is backing the prop to prove it by catapulting London Welsh to the same heady heights in the process.

The Bath academy director has had limited contact with the 23-year-old, with the front-rower strutting his stuff at Old Deer Park after signing a season-long dual-registration loan deal in the summer.

Moss has made a handful of Championship starts at the Exiles and made a late appearance on Friday night as his side lost 26-10 at Nottingham.

But Grewcock is not worried about the prop typecasting himself as a Championship player, believing he has the tools needed to survive at English rugby’s top table.

“Billy always trains really hard when he is down at Bath,” said the World Cup winner.

“He is different to a lot of our younger lads, who are dual-registered, in that his is obviously for a longer period of time and London Welsh will be seeing a lot of him.

“I don’t think he needs to worry about people seeing him as just a Championship player because he is still improving, is still young and can play at the highest level.

“He needs to be patient, but as he works hard to make it happen London Welsh could find themselves in the Premiership at the same time.”

Despite featuring for England at U18, 19 and 20 level, helping the latter reach the final of the World Junior Championships in 2008, Moss has found his opportunities at the Rec few and far between.

But Grewcock believes Moss will get his chance.

“He has gone to London Welsh, to show what he can do and when he gets his chance I imagine he will take it with both hands,” he added.

For a chance to win a training session with SSE’s community rugby ambassador, Danny Grewcock, visit rfu.com/ssecompetition.