That's the recommendation of Socceroos coach Ange Postecoglou in the wake of the 20-year-old's eye-catching appearance in Tuesday night's 1-0 win against Costa Rica at the Sydney Football Stadium.

Postecoglou gave a glowing appraisal of Rogic's impact, describing the Canberra product as ''electric'' and believing it's only a matter of time before he's elevated into the starting XI.

But for that to happen, Rogic must start receiving regular game time at club level, either at his current club Celtic or by securing a loan deal in the January transfer window.

A reunion with his former Central Coast Mariners coach Graham Arnold at Japanese club Vegalta Sendai has been raised as a possibility to ensure Rogic is match-fit leading into next year's World Cup.

However, former Socceroos captain Paul Wade has suggested Rogic would be better served returning to Australia for a stint in the A-League before joining the Socceroos in Brazil.

Postecoglou believed the sky was the limit in terms of Rogic's potential, but cited the need for him to be playing regularly at club level to become a force on the international stage.

''He was electric when he came on,'' Postecoglou told Fox Football. ''In the right environment, playing regular club football at a good level … he could be, well, I don't know what he could be.

''It was great to get a half-hour cameo, but if Tommy Rogic is playing regular football he becomes a leading light in our national team not just now, but for the next 10 years.''

Rogic has made just 11 appearances for Celtic and has been hampered with a long-term groin injury. Arnold gave Rogic his first chance in the professional ranks at the Mariners.

Rogic became one of the stars of the A-League and Arnold led the Mariners to last season's championship. That success led to Arnold signing a two-year deal with Vegalta Sendai from January.

''I think that would be fantastic,'' Postecoglou said.

''Arnie knows him, we know Arnie is a fantastic coach … he's got the best out of Tommy and the J-League is a strong competition.

''There wouldn't be a player on the planet who is going to a World Cup who wouldn't for the next six months think the best move for him would be to play regular football.''

Wade believed Rogic could do with the stability of returning to the A-League and gaining fitness and confidence leading into the World Cup.

''It's really sad the amount of time he's getting at Celtic,'' Wade said.

''Maybe he should come back and play in the A-League, it's one heck of a league now.

''Come home for the next six months, win the league with the Central Coast Mariners then smash whoever we play at the World Cup.''

The Japanese season starts in March and is renowned as the strongest league in Asia.