The 19-year-old utility-player has been cured of severe post-match headaches after Peacock suggested he tried wearing contact lenses during games.

Allan, pictured below, who has made three senior appearances for Rhinos this year, explained: "I was getting bad headaches after games. When I was younger, when I was four or five, I had an operation on the back of my eye, because the nerve there wasn't tight.

"I've never worn contacts, I've always worn glasses. It's only when I started playing and training with the first team that Jamie Peacock mentioned contacts.

"I tried them and it made a big difference after games.

"Playing games is all right, because I'm short-sighted, it's long-distances I can't see too well.

"I could see what's happening on the field, but I was getting headaches after games. Now I'm wearing contacts it's a lot better.

"I don't really see a difference on the field, but it makes a big difference afterwards."

Allan has made three senior appearances after being promoted into Rhinos' first-team squad earlier this season.

He admitted his breakthrough came as a surprise.

"I wasn't expecting to get into the first team this year," he said.

"Next year was going to be my year, to be honest, because then I'll have had a full pre-season with the first team. That was my own personal goal, but with the injuries we've had, Brian (coach Brian McClennan) has had confidence in me to go out and play.

"I am ahead of schedule really, so it has been good. I've had two Super League games and I played in the Challenge Cup against Celtic – and I was on the bench at London, but I didn't get on.

"That was a bit disappointing, but I didn't really expect to be in the first team, so it was good just to be in the 17."

Allan's efforts have been praised by McClennan and the player added: "It has been good.

"I think things have gone really well. I've played in a few positions I didn't expect to be playing in, I made my Super League debut at stand-off and I'm a 13 (loose-forward), so it has been good, I am enjoying it.

"In my young days I played at centre, but as soon as I came to Leeds I found my way into the pack. That's my main position, I prefer to play at 13." Allan added: "I'd love to play a few more games this season, but it's coming towards crunch time and we're getting players back who are first-team regulars. It's going to be pretty hard, but maybe next year is going to be my year."

Hooker Matt Diskin is also in the Rhinos' 19-man squad despite McClennan rating him "90 per cent doubtful," earlier in the week with an elbow injury picked up against Huddersfield.

Youngster Ben Kaye is included as cover.

McClennan said: "Disko has come through training on Thursday so that's good news."

Ian Kirke returns for the first time since injuring his hamstring when scoring in the win over Catalans in February.

Winger Lee Smith, who was 18th man last week is also in the travelling party.

But there is no place for Ben Jones-Bishop in the absence of full-back Brent Webb (back), while prop Ryan Bailey (ankle) was also left behind.

Rhinos (v Les Catalans Dragons) from: Smith, Hall, Toopi, Senior, Donald, McGuire, Burrow, Kaye, Scruton, Leuluai, Diskin, Kirke, Peacock, Lauitiiti, Jones-Buchanan, Ellis, Sinfield, Ablett, Burgess.