Jamie Roberts is in line to win his first senior Wales cap

The Cardiff Blues full-back or wing is the only uncapped player in coach Warren Gatland's first squad.

But the 6ft 4in Roberts, 21, is in the running to start against England in the Six Nations opener on 2 February.

"Getting in the squad is one step and I've really got to fight for my place in the team now," Roberts told the BBC.

"Hopefully now the squad can gel well and we can look forward to Twickenham."

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Roberts has impressed during the Blues' Heineken Cup campaign and was picked in the squad ahead of veteran full-backs Gareth Thomas and Kevin Morgan.

"It was a bit of an anxious morning waiting to see whether I would be in or not, but I'm delighted - there's no words to describe how I'm feeling right now," added Roberts.

In less than a year Roberts has gone from playing club rugby with Cardiff RFC, stepped up to regional level with the Blues and he now stands on the verge of his Test debut.

Roberts has had to settle for playing on the wing for the Blues rather than his preferred role of full-back.

But the youngster, who studied medicine at the University of Wales in Cardiff before concentrating on rugby, says he has learnt from New Zealander Ben Blair, who usually wears the Blues' 15 shirt.

"It's thanks to Cardiff Blues for just giving me the chance to play, even if it is out of position.

"Just being out on the pitch rather than on the bench or not involved at all has been great, Ben Blair is a fantastic full-back and I'm learning tons off him at the moment.