Tom Rogic.

Tom Rogic. Photo: Getty Images

Scottish powerhouse Celtic has agreed to loan emerging Socceroo Tom Rogic to the Japanese club coached by Australian Graham Arnold.

The move is a boost to Rogic's World Cup hopes, after the promising 21-year-old failed to get regular game time at Celtic.

Celtic manager Neil Lennon was initially irked by the public desire of Australia's new coach Ange Postecoglou for Rogic to be loaned.

Postecoglou openly suggested Rogic reunite with Arnold at Vegalta Sendai in Japan to enhance his prospects for Australia's campaign for the World Cup in Brazil in June.

Lennon was upset that anyone would attempt to tell him what to do with one of his players, adamant any loan deal for Rogic would be decided by Celtic, not Australia.

But Lennon's stance softened as he struggled to find meaningful game time for the midfielder.

Rogic has made just 14 appearances for Celtic, and only five in the starting line-up, since transferring from A-League outfit Central Coast Mariners some 12 months ago.

He last played for Celtic, as a substitute, in a Champions League match against AC Milan on November 26 and Lennon conceded he was having difficulty finding even a bench spot for Rogic.

''There is interest from Graham Arnold's team in Japan. We have agreed to do that (loan him),'' Lennon told Glasgow's Evening Times newspaper.

Lennon was confident Rogic would return to Parkhead better placed to challenge for a starting place.

''I can't guarantee Tom game in, game out. And I think that's what he needs at the minute,'' Lennon said.

''He has only had 31 professional games in his career so some people are expecting him to run before he can walk.

''Kris Commons is playing so well in that position, and I have other options in that position as well.

''It will be good for Tom to go and get some football.''

Rogic, capped eight times for Australia, is considered a key part of Postecoglou's rebuild of the Socceroos entering the World Cup, where the Socceroos play Chile, the Netherlands and Spain.

AAP