By Phil Harlow

I've still got things to prove to myself Henry Paul

Henry Paul has taken a parting shot at England rugby union coach Andy Robinson after completing his move back to his original code of rugby league.

Paul made a high-profile move to union, but won only six caps in five years and was famously substituted by Robinson after 26 minutes in his final Test.

"I still can't see why I was taken off so early," Paul, who joined Harlequins on Thursday, told BBC Sport.

"England haven't got it right since - it makes me think what could've been."

The 32-year-old was a regular member of England's successful Sevens squad but never established himself in the full Test side.

The closest Paul came to cementing a place was in the autumn internationals of 2004 when Robinson selected him to start at centre against Canada, South Africa and Australia.

But the Australia game was to be his final involvement at Test level.

"When I finally got my proper start for England against Canada we thrashed them and it was always going to be no matter who played. Then against South Africa I built on that. I was just starting to click," added Paul.

"(Robinson) never really explained it to me. You have ups and downs in sport and that was a real down in my career.

"But it was more confusing than anything else. I've got on with life though - you have to move on and I did the day after the match."

Paul left rugby league in 2001 after winning all the major honours in the domestic game.

But he insists he is still hungry for more success at Harlequins.

There are a couple of teams I would have liked to join, especially Bath Henry Paul

"I've still got things to prove to myself," said Paul.

"I've always played the game to try to win stuff and I'd love to do it here.

"Anyone who plays sport should always have something to prove. Every weekend you should say to yourself 'yes, I'm going to prove to my coach he was right to pick me this week'."

Paul admitted he had been in talks with several clubs, from both codes of rugby, before settling on a move to Harlequins.

"I talked to other union clubs and clubs in Australia. I would have stayed in rugby union if I really wanted to but I didn't," he said.

"I'd done my stint with Gloucester. There are a couple of teams I would have liked to join, especially Bath. I love the way they've played under Brian Ashton, but it didn't come off.

"The idea of coming to London and being part of this whole organisation was really appealing. The guys they've got here are a really talented bunch and that was a major part of it."